APA (7th ed.) Citation

Speeth, K. R., Friedlander, I., & Driscoll, J. W. (1980). Gurdjieff: Seeker of the truth (1st U.S. ed.). Harper Colophon Books.

Chicago Style (17th ed.) Citation

Speeth, Kathleen Riordan, Ira Friedlander, and J. Walter Driscoll. Gurdjieff: Seeker of the Truth. 1st U.S. ed. New York: Harper Colophon Books, 1980.

MLA (9th ed.) Citation

Speeth, Kathleen Riordan, et al. Gurdjieff: Seeker of the Truth. 1st U.S. ed. Harper Colophon Books, 1980.