APA (7th ed.) Citation

Hardon, J. A. (1968). Religions of the world. Image Books.

Chicago Style (17th ed.) Citation

Hardon, John A. Religions of the World. Garden City (New York): Image Books, 1968.

MLA (9th ed.) Citation

Hardon, John A. Religions of the World. Image Books, 1968.

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