APA (7th ed.) Citation

Porfirio, c. 2. 3., & Clark, G. (2014). On abstinence from killing animals (1st ed. paperback.). Bloomsbury.

Chicago Style (17th ed.) Citation

Porfirio, ca. 234-ca. 305, and Gillian Clark. On Abstinence from Killing Animals. 1st ed. paperback. London [etc.]: Bloomsbury, 2014.

MLA (9th ed.) Citation

Porfirio, ca. 234-ca. 305, and Gillian Clark. On Abstinence from Killing Animals. 1st ed. paperback. Bloomsbury, 2014.