O Marcaigh Fiachra : Australia : a handbook for living and working down under / Fiachra Ó Marcaigh, Jessica Classon.
c1988
1
O Meara Louise
2
O Miochain Tomas : TOMAS O MIOCHAIN:Filiocht / DIARMUID O MUIRITHE
1988
1
O Monachain Mairtin : Mevagh miscellany / Máirtín Ó Monacháin.
2013
1
O Mordha Sean
2002
1
O Morgan Kenneth : The Oxford Mini History of Britain
1
O Moronaigh Sean : Dramaíocht O Dhuchas o bhealaithris Thaidhg Ui Chonchubhair / Sean O;Moronaigh.
2005
1
O Muilleoir Mairtin
3
O Muimheachain Aindrias : Radio Eireann "Listen and learn" series : an elementary series of Irish lessons, vocabulary, idiom phrases, narrative and dialogues to be taught through the medium of broadcasting / Aindrias O Muimheachain.
195-
1
O Muimhneachain Aindrias
6
O Muircheartaigh Antoin : O Thoirtis go Tiogar : 1916 agus sceal ar ngeilleagair / Antoin O Muircheartaigh.
2006
1
O Muircheartaigh Aogan
3
O Muircheartaigh Micheal
3
O Muireadha Tomas C : Athbharra & Laom-Luisne Foghmhair / Tomas C. O Muireadha.
1930
1
O Muirgheasa Enri
5
O Muiri Damien : Comhreir Ghaeilge Ghaoth Dobhain : patruin na nabairti / Damien O Muiri.
1982
1
O Muiri Pol
3
O Muiri Pol 1965 : Dinnseanchas / Pól Ó Muirí.
1992
1
O Muiri Reamonn : Lámhscríbhinn staire an Bhionadaigh : comhrac na nGael agus na nGall le chéile / Réamonn Ó Muirí.
1994
1
O Muirii Pol : Ginealach Ultach / Pól Ó Muirí.
1993
1
O Muirithe Diarmaid
4
O Muirthile Liam : Dialann bóthair / Liam Ó Muirthile.
1992
1
O Mullain Sean
6
O Murchu Dealgan : Briathra Na Gaeilge : regular and irregular / Déaglán Ó Murchú.
1
O Murchu Helen Editor : REFLECTIONS : Irish language communities in action
1
O Murchu L P : Cuirt an mheon-oiche / Brian Merriman and edited by L.P. O Murchu.
1982
1
O Murchu Livin : Stair na hEireann 1760-1900
197-
1
O Murchu Mairtin : Language and community : occasional paper no. 1 / Máirtín Ó Murchú.
1
O Murchu Maitiu : Colm na Cille / Maitiu O Murchu and Deirdre Ni Bhraonain.
1998
1
O Murchu Marcas : Imirce na nIarlai / marcas O'Murchu.
2007
1
O Murchu Padraig
2
O Murchu Seamas : Liosta focal as Idir shúgradh agus dáiríre / Séamas Ó Murchú.
1982
1
O Murchu Tomas : Forbairt agus soláthar Oideachais i bParóiste na Rátha agus na nOileán 1800-1870 / Tomás Ó Murchú.
1988
1
O Murii Pol : Is mise ísmeáél / Pól ÓMuirí.
2000
1
O N U D I -- See United Nations Industrial Development Organization
1
O Neachtain Eoghan
2
O Neachtain Joe Steve : De dhroim leice / Joe Steve Ó Neachtain.
1990
1
O Neill Charles : Suma contra gentiles Book Four salvation/translated, with an introduction and notes by Charles J. O' Neil.
1975
1
O Neill Eugene : Long day's journey into night / Eugene O'Neill.
1956
1
O Neill Francis : The Dance Music of Ireland: double jigs , single jigs , hop or slip jigs , reels , hornpipes , long dances , set dances etc..
1907
1
O Neill Gerard : FOCUS ON THE FUTURE : The Coming Boom in Direct Marketing. Volume 1 : Analysis. A Report prepared for the IDMA
1996
1
O Neill J M : Duffy is dead / J.M. O'Neill.
1987
1
O Neill N Vincent : Mentoring entrepreneurs : shared wisdom from experience / Brian Doyle and N. Vincent O Neill.
2001
1
O Neill Seamus
2
O Neill Seamus 1910 : Faill ar an bhfeart : dráma trí ghníomh / Séamus Ó Néill.
c1967
1
O Nuallain Ciaran
2
O Nuallain Gearoid
3
O Rabhartaigh Tadhg
3
O Raghallaigh Criostoir : Litridheacht na Gaedhilge / Criostóir Ó Raghallaigh.
1
O Rahilly Cecile
4
