APA (7th ed.) Citation

Potter, C. F., & Potter, C. C. (1930). Humanism, a new religion. Simon and Schuster.

Chicago Style (17th ed.) Citation

Potter, Charles Francis, and Clara Cook Potter. Humanism, a New Religion. New York: Simon and Schuster, 1930.

MLA (9th ed.) Citation

Potter, Charles Francis, and Clara Cook Potter. Humanism, a New Religion. Simon and Schuster, 1930.