* _Born in October_ (1958)
* _The Reinhaert Sequence_ (1971)
* _The Prince of Morning Bells_ (1981)
* _The Palace Gate_ (1987)
Non-fiction:
* _A Bibliography of Modern Anglo-Irish Literature: Volume 1800-1970_ (1972)
* _A Guide to the Irish in Britain_ (1981)
* _Ireland and Northern Ireland: A Chronology of events 1968-1980_ (1981)
* _Ireland: A Bibliography of Anglo-Irish Literature and History_ (1988)
* _Belfast: A Bibliography of Books, Pamphlets, Articles and Reports Relating to Belfast_ (1989)
* _Northern Ireland: A Bibliography of Books, Pamphlets, Articles and Reports Relating to Northern Ireland_ (1990)
* _The War in Ireland: A Bibliography of Books, Pamphlets, Articles and Reports Relating to Northern Ireland_ (1991)
* _James Joyce and Anglo-Irish Literature: A Bibliography of Criticism_ (1992)
* _The Troubles in Northern Ireland: A Bibliography of Books, Pamphlets, Articles and Reports_ (1994)
* _The History of Ireland: A Bibliography of Books, Pamphlets, Articles and Reports_ (1996)
* _Protestant Northern Irish Literature: A Bibliography of Books, Pamphlets, Articles and Reports_ (1998)
* _The Northern Ireland Question: A Bibliography of Books, Pamphlets, Articles and Reports_ (2000)