APA (7th ed.) Citation

O'Sullivan, T. D. (1979). The de excidio of Gildas: Its authenticity and date. Univ.Microfilms Internat.

Chicago Style (17th ed.) Citation

O'Sullivan, Thomas D. The De Excidio of Gildas: Its Authenticity and Date. Ann Arbor, Mich: Univ.Microfilms Internat, 1979.

MLA (9th ed.) Citation

O'Sullivan, Thomas D. The De Excidio of Gildas: Its Authenticity and Date. Univ.Microfilms Internat, 1979.

Warning: These citations may not always be 100% accurate.