APA (7th ed.) Citation

Z., P. (1990). A skeptic's guide to the 12 steps. Hazelden.

Chicago Style (17th ed.) Citation

Z., Phillip. A Skeptic's Guide to the 12 Steps. Center City, MN: Hazelden, 1990.

MLA (9th ed.) Citation

Z., Phillip. A Skeptic's Guide to the 12 Steps. Hazelden, 1990.