Y Psallwyr Gyda Chaniadau Ac Emynau Yr Eglwys, Wedi Eu Nodi Megis Ag y Maent I'w Corganu
Jones, J. Thomson
UK. 1933.

YPS FOR NEW CHRISTIANS
Cwr Publishing. 1997.
ISBN 1853451053

YPS GUIDE TO KNOWING GOD
Brant Jonathan
Cwr Publishing. 2006.
ISBN 1853454079

Yp's Guide To Knowing God (YP's)
Jonathan Brant
Crusade for World Revival. 2006.
ISBN 1853454079

Yp's Guide To The Bible (YP's)
Crusade for World Revival
Crusade for World Revival. 2005.
ISBN 1853453528

Ypsilanti: A History in Pictures (MI) (Images of America)
Mann, James Thomas
Arcadia Publishing.
ISBN 0738519952

Ypsilanti A History in Pictures
Mann, James Thomas
Arcadia Pub. 2002.
ISBN 0738519952

The Ypsilanti-Carnegie Infant Education Project
Epstein, A S & Weikart, D P
The Highscope Press. 1979.

The Ypsilanti-Carnegie Infant Education Project: Longitudinal Follow-Up
Epstein, Ann S
High/Scope Pr January 1, 1980 Ypsilanti, Mich. 1980.
ISBN 0931114063

YPSILANTI IN THE 20TH CENTURY
MANN, JAMES THOMAS
ISBN 0738531855

Ypsilanti in the 20th Century (MI) (Images of America)
Mann, James Thomas
Arcadia Publishing.
ISBN 0738531855

The Ypsilanti Perry Preschool Project: Preschool Years and Longitudinal Results Through Fourth Grade (Mngrps of High/Scope Educ. Res. Found., No 3)
Weikart, David P. Bond, J. T
High/Scope Pr Jun 1978 Ypsilanti, Mich. 1978.
ISBN 0931114020

The Ypsilanti Preschool Curriculum Demonstration Project: Preschool Years and Longitudinal Results (Mngrphs of High/Scope Educ. Res. Found., No 4)
Weikart, David P
High/Scope Pr Jun 1978 Ypsilanti, Mich. 1978.
ISBN 0931114039

Yp's Living Large
Steve Holloway
Crusade for World Revival. 2003.
ISBN 185345284X

Yp's - Nov/dec 1995 - God's Secret Flying Squad
CWR.

Ypu Are In Ancient Egypt
MINNIS, IVAN
ISBN 1844432858

Y Pulpud Bach
Bodfan
Spurrell. 1924.

The Ypungest Girl in the Fifth
Angela Brazil
Blackie, London.

Y PURITANIAD
WILLIAMS. REV. WILLIAM
Denbigh, Wales: Thomas Gee. 1860.

Y PURITANIAID
WILLIAM WILLIAMS
Denbigh.Thomas Gee. 1860.

They Put Me Inside
GRESTONE, Tony
Scripture Union. 1973.
ISBN 0854212876

They Put Out to Sea
Duvoisin, Roger
University of London Press., London. 1959.

They Put Out to Sea
Roger Duvoisin
University of London Press, London. 1947.

They Put Out to Sea: The Story of the Map
Duvoisin, Roger
ISBN 0394917405

They Put Out to Sea: The Story of the Map (illustrated by the author)
Duvoisin, Roger
University of London Press. 1947.

They Put Out to Sea - The Story of the Map
DUVOISIN Roger
UNIVERSITY OF LONDON PRESS. 1947.

Y Pypedau a Y Llyw Olaf
Urien William
Christopher Davies. 1976.

Yq;Feminism & Youth Cult Pr
Mcrobbie A
Palgrave Macmillan. 1990.
ISBN 033345264X

Yq;Long Transition Hc
Hollands R
Palgrave Macmillan. 1990.
ISBN 0333463730

Y Que Amor No Cambia Nt-91
UNKNOWN. 2002.
ISBN 8498410606

Yquem
GASTRONOMY] OLNEY, Richard
London, Dorling Kindersley. 1986.

Yquem
Olney, Richard
Dorling Kindersley. 1986.
ISBN 0863181805

Yquem
Olney, Richard
Flammarion. 1985.
ISBN 2082011887

YQUEM
RICHARD OLNEY
DAVID R GODINE PUB. 1986.
ISBN 0879236442

Y QUIEN ES JESUS?
NUNEZ, MIGUEL
ISBN 0825415837

Y quien es Jesus?: Knowing the Person of Jesus
Miguel, Dr. Nunez
Editorial Portavoz.
ISBN 0825415837

Y Quien Es Jesus?: Un Enfoque Practico Acerca del Hombre Que Cambio la Historia
Nunez, Miguel (Author)
Portavoz. 2007.
ISBN 0825415837

Y Quien Es Jesus? Un Enfoque Practico Acerca Del Hombre Que Cambio La Historia
Nunez, Miguel
Kregel Pubns. 2007.
ISBN 0825415837

Yr. 1932 no. 12. The Khibins
USSR IN CONSTRUCTION

Yr. 1932 no. 3. The 10th Anniversary of the Transcaucasian Federation
USSR IN CONSTRUCTION

Yr. 1932 no. 5. The Construction of Berezniki Chemical Works and`
USSR IN CONSTRUCTION

Yr. 1932 no. 6. Soviet Civil Aviation
USSR IN CONSTRUCTION

Yr. 1932 no. 7. Krammashstroi and Uralmashstroi
USSR IN CONSTRUCTION

Yr. 1932 no. 8. Railroads to the Aid of Socialistic Construction
USSR IN CONSTRUCTION

Yr. 1932 no. 9. (Soviet Altai)
USSR IN CONSTRUCTION

Yr. 1933 no. 11. The Tenth Anniversary of Buriat-Mongolia
USSR IN CONSTRUCTION

Yr. 1933 no. 2. The 15th Anniversary of the Red Army
USSR IN CONSTRUCTION

Yr. 1933 no. 3. Soviet Volga
USSR IN CONSTRUCTION

Yr. 1933 no. 4. The White Russian Soviet Socialist Republic
USSR IN CONSTRUCTION

Yr. 1933 no. 7. Makstroi and Luganstroi
USSR IN CONSTRUCTION

Yr. 1933 no. 8. The Opening of the Chelyabinsk Tractor Plant
USSR IN CONSTRUCTION

Yr. 1934 no. 1. The Bobriki Chemical Combinat
USSR IN CONSTRUCTION

Yr. 1934 no. 5. The Moscow and Leningrad Meat Packing Plants
USSR IN CONSTRUCTION

Yr. 1936 no. 12. Posvyashen sovetskomy Gornomu Badakhshanu
SSSR NA STROIKE

Yr 3 Myths and Legends
Law Karina
A & C Black. 2007.
ISBN 0713685204

Yr 4 Stories From Differnt Cultures
Law Karina
A & C Black. 2007.
ISBN 0713685107

Yr 5 Playscripts
Law Karina
A & C Black. 2007.
ISBN 0713684267

Yr 5 Playscripts-Teachers Resource For
LAW, KARINA
ISBN 0713684267

Yr 6 Shakespeare Retellings
Chapple Sue
A & C Black. 2007.
ISBN 0713684259

THEY RACED FOR THE TREASURE
Seraillier, IanSeraillier, Ian::
Cape. 1966.

THEY RACED FOR TREASURE
IAN SERRAILLIER
JONATHAN CAPE. 1946.

They Raced for Treasure
SERRAILLIER IanSERRAILLIER Ian::
London. Jonathan Cape. 1973.

They Raced for Treasure (New Adventure Library)
Ian Serraillier
Jonathan Cape.
ISBN 0224611127

Yr Adar Man
E V Breeze Jones
Gwasg Prifysgol Cymru. 1967.

Yr Adolygydd:........... (Vol 2 only)
Rees & Williams, Llanelli. 1852.

YR ADRODDIADUR DIRWESTOL: Casgliad O Ddadleuon, Caneuon, A Darnau Dewisol I'w Hadrodd
BEREN (Preface by T.E.Griffith of Pwllheli)
Caernarfon, Wales. Swyddfa'r Genedl. 1873.

YR AELWYD: A Storiau Eraill
MAUPASSANT (translated into Welsh by Gwenda Gruffydd)
Llandebie, Carmarthen. Llyfrau'r Dryw. 1946.

Yr Aelwyd. Cyfrol VII. 1947
Griffith, R. E
Aberystwyth: Cwmni Urdd Gobaith Cymru. 1947.

Yr Aelwyd Hon
Llyfrau'r Dryw. 1970.

YR AFAL AUR
GERALD MORGAN
GWMNI CYHOEDDIADAU MODERN CYMREIG. 1965.

YR AFAL AUR
Morgan, Gerald
1965 Cyhoeddwyd Gan Gwmni Cyhoeddiadau. 1965.

Yr Afr Fach Hapus
John Kershaw
Odhams Llyfrau. 1962.

Yr Afr Fach Hapus
John Kershaw Translated into welsh by Gwen Green
Hamlyn. 1982.

Yragael Urm
Druillet, Philippe /Dom
Dragon's Dream, Paris.
ISBN 9063325215

YRAGAEL URM
Philippe Druillet

Yragael Urm Druilliet
Demuth
Dragon's Dream, Holland. 1975.
ISBN 9063325215

YRAGARL URM
DRUILLET
ISBN 9063325215

Yr Ail-Eseia: Proffwyd Yr Adferiad (Eseia 40-55)
Rowlands, Elwyn R
Llyfrfa'r M.C., Caernarfon. 1978.

Yr Alcestis gan Euripides Chwareugerdd Roegaidd Weidi ei Throi I'r Gymraeg, gan D. Rowlands & D.E. Edwardes. 1887
EURIPIDES

YR ALLOR DEULAIDD: NEU WEDDIAU BOREUOL A HYROL, ACHLYSUROL
PARRY. HENRY
Bangor, Wales: J Mendus Jones. 1863.

Yr Amaethwr Anfodlon
Glyn Williams
Gwasg Gee. 1991.
ISBN 0707402042

Yr Amddiffynwyr - Cymru Mewn Hanes : Cyfrol II, 1066-1485
Fraser, David
Gwasg Prifysgol, Cardiff. 1967.

Yr American; yn Cynwys Nodau ar Daith O Ddyffryn Ohio i Gymru golwg ar Dalaeth Ohio, Hanes Sefydliadau Cymreig yn America . .
B.W. Chidlaw, A.M
Llanrwst: Argraffwyd, Gan John Jones. 1840.

Yr Amgueddfa A'i Chynnwys Hyfforddwr Byr
National Museum of Wales. 1928.

Yr Anabl (Language - Welsh - Who Cares)
Child's Play
ISBN 0859534766

YR ANFARWOL IFAN HARRIS
JONES. IDWAL
Liverpool: Wyn Edwards & Morris, circa. 1940.

They Ran For My Life
Sam Sultan
Trafford Publishing. 2006.
ISBN 1553956591

They Rang Up the Police
Cannan, Joanna
Rue Morgue, USA. 1999.
ISBN 0915230275

YR ANIANYDD CRISTIONOGOL
Dick, Thomas
Robert Griffith. 1842.

Yr Anthem Genedlaethol
Aeres Twigg
Gomer Press. 2000.
ISBN 1859028853

Yr Anthem Genedlaethol : The National Anthem
Twigg, Aeres
Gomer Press, UNITED KINGDOM 2000 Cip Ar Gymru/Wonder Wales S. 2000.
ISBN 1859028853

Yr Anthem Genedlaethol: The National Anthem (Cip Ar Gymru/Wonder Wales)
Aeres Twigg
08/08/2000. 2000.
ISBN 1859028853

Yr Anthem Genedlaethol (Cip Ar Gymru/Wonder Wales)
Aeres Twigg
Gomer Press. 2000.
ISBN 1859028853

Yr Anthem Genedlaethol/The National Anthem
Aeres Twigg
Gomer. 2004.
ISBN 1859028853

YR ANTHEM GENEDLAETHOL THE NATIONAL ANTHEM
TWIGG, AERES
GOMER PRESS Country = UNITED KINGDOM. 2000.
ISBN 1859028853

They Ran to Him: (the Story of Murray Stanton...)
Waite, John Charles
Salvationist Publishing and Supplies, London. 1974.
ISBN 085412246X

Yr Antur Fawr
Edwards D.Miall
Hughes Wrecsam. 1932.

Yr Anturiaethwyr
David Fraser
Gwasg Prifysgol Cymru. 1978.

Yr Anturiaethwyr Cymru Mewn Hanes cyfrol 111 1485-1760
Fraser David
Prifysgol Cymru Caerdydd. 1978.

YR ANWYLYD A CHERDDI ERAILL
ROLAND JONES
GWASG Y BRYTHON. 1963.

Yr Apocrypha

Yr Apocrypha
Society for Promoting Christian Knowledge.

YR ARADR CYMREIG
Payne F
University of Wales Press.

Yr Aradr Gymreig
F G Payne
Gwasg Prifysgol Cymru, Cardiff. 1975.

Yr Aradr Gymreig [ The Welsh Plough]
PAYNE F
University of Wales Press. 1975.

Yr Aradr Gymreig
Payne Ffransis
Caerdydd Gwasg Prifysgol Cymru. 1975.

YR ARADR GYMREIG ( THE WELSH PLOUGH)
Payne Ffransis
Gwasg Prifysgol Cymru. 1975.

Yr Arddull Glasurol : Hayd, Mozart, Beethoven
Charles Rosen
Curiad. 1999.
ISBN 1897664869

YR AREITHIAU PROS
JONES, D. GWENALLT

YR ARGLWYDD CLEDWYN O BENRHOS
PRICE, Emyr
Cyhoeddiadau Mei, Bangor. 1990.
ISBN 0905775740

Yr Argyfwng
Bebb, W Ambrose
Llyfrau'r Dryw. 1961.

Yr Argyfwng Cred
Humphreys. James
Abertawe. 1976.

Yr Argyfwng Cred
James Humphreys
Ty John Penry, Abertawe. 1976.

Yr Argyfwng Gwacter Ystyr
J R Jones
Llyfrau'r Dryw.

Yr Arloeswr
Jones. David
Wales Llyfrau'r Castell Caerdydd. 1946.

Yr Arloeswr A Cherddi Eraill
Jones, Dafydd
Wasg John Penry, Abertawe.

YR ARTH WEN
Seren Cyfres Y
Gwasg Y Dref Wen. 1981.

The Y.R.A.Rules for 1934
YACHT RACING ASSOCIATION
Harrison. 1934.

The Y.R.A. Rules for 1934. Incorporating the Rules of the International Yacht Racing Union. Official English Text
Anon
Harrison & Sons, London. 1934.

The Y.R.A.Rules for 1935
YACHT RACING ASSOCIATION
Harrison. 1935.

The Y.R.A.Rules for 1937
YACHT RACING ASSOCIATION
Harrison. 1937.

Y.R.A Rules for 1937
Yacht Racing Association

The Y.R.A.Rules for 1938
YACHT RACING ASSOCIATION
Harrison. 1938.

The Y.R.A.Rules for 1939
YACHT RACING ASSOCIATION
Harrison. 1939.

Y.R.A Rules for 1939
Yacht Racing Association

YR ARWEINYDD: MISOLYN AT WASANAETH EGLWYSI AC YSGOLION SABBATHOL Y METHODISTIAID CALFINAIDD YN NGOGLEDD A DEHAU CEREDIGION, AM 1879
LLEWELYN EDWARDS
G. WILLIAMS. 1879.

Yr Arweinydd Cerddorol
Mills. Richard
Wales. Llanidloes. John Mendus Jones. 1844.

Yr Arwrgerdd Gymraeg
Millward, E.G
University of Wales Press.
ISBN 0708314694

Yr Arwr Main
Ifor Wyn Williams
Hughes A'i Fab. 1962.

Y Ras Filltir - a Storiau Eraill
JR Evans
Hugh Evans.

Yr athraw [the teacher]; cylchgrawn lleenyddol a dirwestol. Vol.1-2( of 9)
Gwalchmai (Humphrey, editor)

Yr Athrawiaeth Gatholig o Ddrindod
William Jones
Trefecca. 1794.

Yr Athrawiaeth Gristionogol
Edwrds G A
Cyhoeddedig Yn Llyfrfa'r Cyfundeb, Caernarfon. 1923.

YR ATHRO EVAN JAMES WILLIAMS: A WORLD-FAMOUS WELSH SCIENTIST
J. TYSUL JONES (EDITOR)
Llandysul. Gwasg Gomer. 1970.

Yr Athro J.M.Davies
Davies T.Price
Hugh Evans and Sons. 1914.

YR ATHRONYDD CYMREIG (The Welsh Philosopher)
Evans,Parch.W.(Monwyson)
Samuel Hughes, Bangor. 1890.

Yr Atlas Cymraeg
Orwig. Dafydd
George Philip, Caerdydd. 1987.
ISBN 0540055239

Yr Atlas Cymreag
Orwig, Dafydd
: published by George Philip. 1979.

YR AWDL-BRYDDEST FUDDUGOL
CEULANYDD
Trefynnon: Rev J Ceulanydd-Williams. 1887.

Yr Awdl Fuddugol Ar Caledfryn ; Testyn Cystadleuol Groes, Gwener y Groglith
Yr Awdl Fuddugol
Argraffwyd Gan David j Hopkins, Ponty Pridd. 1872.

YR AWDL Y BRYDDEST A DARNAU ERAILL BUDDUGOL YN EISTEDDFOD GENEDLAETHOL ABERAFAN PORT TALBOT 1932
N/A

Yr Awdl, Y Bryddest, A Darnau Eraill, Buddugol Yn Eisteddfod, Genedlaethol Abergwaun, 1936
Hugh Evans A'i Feibion. 1936.

Yr Awdl y Bryddest,a Darnau Eraill,Buddugol yn Eisteddfod Genedlaethol Bangor
Hugh Evans. 1931.

Yr Awdl y Bryddest, a Darnau Eraill,Buddugol yn Eisteddfod Genedlaethol Bangor 1931
Hugh Evans.

Yr Awdl, y Bryddest, a Darnau Eraill, Buddugol Yn Eisteddfod Genedlaethol Lerpwl, 1929
Hugh Evans A'i Feibion. 1929.