APA (7th ed.) Citation

Wellbeloved, S. (2003). Gurdjieff: The key concepts. Routledge.

Chicago Style (17th ed.) Citation

Wellbeloved, Sophia. Gurdjieff: The Key Concepts. London ; New York: Routledge, 2003.

MLA (9th ed.) Citation

Wellbeloved, Sophia. Gurdjieff: The Key Concepts. Routledge, 2003.

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