APA (7th ed.) Citation

Logan, A. H. B. (2006). The Gnostics: Identifying an early Christian cult. Clark.

Chicago Style (17th ed.) Citation

Logan, Alastair H. B. The Gnostics: Identifying an Early Christian Cult. New York: Clark, 2006.

MLA (8th ed.) Citation

Logan, Alastair H. B. The Gnostics: Identifying an Early Christian Cult. Clark, 2006.

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