- The Great Cover-Up: The Truth About the Death of Michael Collins
- Duanaire Finn: The Book of the Lays of Fionn, Part III; Volume 3
- Early Irish Lyrics: Eighth to Twelfth Century
- Now I Understand: A Guide to Life in Layman's Terms
- Duanaire Finn = The Book of the Lays of Fionn: Part II: Irish Text; Volume 28