M M · S M · Séamus MacMathúna
| title | media type | ISBN-13 | year of publica- tion  | other author(s) | 
|---|---|---|---|---|
| Collins Express Irish Dictionary | Paperback | 978-0-00-719642-5 | 2005 | Ailbhe O Corrain (eds) | 
| Irish Dictionary | Vinyl Bound | 978-0-00-470753-2 | 1995 | Harper Collins Publishers | 
| Minority Languages in Scandinavia, Britain and Ireland | Hardcover | 978-91-554-4111-1 | 1999 | Ailbhe O. Corrain | 
| Miscellanea Celtica Memoriam Henrich Wagner | " | 978-91-554-3951-4 | 1997 | Ailbhe O Corrain · Ailbhe O. Corrain · Heinrich Wagner | 
| Parallels Between Celtic and Slavic, Proceedings of the First International Colloquium of Societas Celto-Slavica Held at the University of Ulster, Coleraine, 19-21 June 2005: Studia Celto-Slavica. I | Microfilm | 978-0-337-08836-0 | 2006 | Maxim Fomin | 
| Sacred Topology of Early Ireland and Ancient India: Religious Paradigm Shift | Hardcover | 978-0-9845353-0-9 | 2010 | Maxium Fomin · Victoria Vertogradova | 
| Sacred Topology of Early Ireland and Ancient India: Religious Paradigm Shift | Paperback | 978-0-9845353-1-6 | 2010 | Maxim Fomin · Séamus Mac Mathuna · Victoria Vertogradova | 
HarperCollins · Stationery Office Books · The Institute for the Study of Man