APA (7th ed.) Citation

Filoramo, G., & Alcock, A. E. (1991). A history of gnosticism. B. Blackwell.

Chicago Style (17th ed.) Citation

Filoramo, Giovanni, and Antony Evelyn Alcock. A History of Gnosticism. Oxford: B. Blackwell, 1991.

MLA (9th ed.) Citation

Filoramo, Giovanni, and Antony Evelyn Alcock. A History of Gnosticism. B. Blackwell, 1991.

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