APA (7th ed.) Citation

Ó Fiaich, T. (1974). Columbanus in his own words. Veritas Publications.

Chicago Style (17th ed.) Citation

Ó Fiaich, Tomás. Columbanus in His Own Words. Dublin: Veritas Publications, 1974.

MLA (8th ed.) Citation

Ó Fiaich, Tomás. Columbanus in His Own Words. Veritas Publications, 1974.