APA (7th ed.) Citation

Adler, M. J. (1980). How to think about God: A guide for the 20th-century pagan. Macmillan.

Chicago Style (17th ed.) Citation

Adler, Mortimer J. How to Think About God: A Guide for the 20th-century Pagan. New York: Macmillan, 1980.

MLA (8th ed.) Citation

Adler, Mortimer J. How to Think About God: A Guide for the 20th-century Pagan. Macmillan, 1980.