APA (7th ed.) Citation

Tomás de Aquino, S., & O'Brien, T. (1972). Summa theologiae. Eyre & Spottiswoode.

Chicago Style (17th ed.) Citation

Tomás de Aquino, Santo, and T.C O'Brien. Summa Theologiae. London: Eyre & Spottiswoode, 1972.

MLA (9th ed.) Citation

Tomás de Aquino, Santo, and T.C O'Brien. Summa Theologiae. Eyre & Spottiswoode, 1972.

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