APA (7th ed.) Citation

Gurdjieff, D. A. (2004). Spiritual realism: The skeptic's guide to happiness. IUniverse.

Chicago Style (17th ed.) Citation

Gurdjieff, David A. Spiritual Realism: The Skeptic's Guide to Happiness. New York: IUniverse, 2004.

MLA (9th ed.) Citation

Gurdjieff, David A. Spiritual Realism: The Skeptic's Guide to Happiness. IUniverse, 2004.