APA (7th ed.) Citation

Gruss, E. C. (1974). Cults and the occult (Rev. ed.). Baker.

Chicago Style (17th ed.) Citation

Gruss, Edmond C. Cults and the Occult. Rev. ed. Grand Rapids, Mich: Baker, 1974.

MLA (8th ed.) Citation

Gruss, Edmond C. Cults and the Occult. Rev. ed. Baker, 1974.