Cita APA (7th ed.)

Clark, M. (1997). Reason to believe: A practical guide to psychic phenomena. Avon Books.

Cita Chicago (17th ed.)

Clark, Michael. Reason to Believe: A Practical Guide to Psychic Phenomena. New York: Avon Books, 1997.

Cita MLA (9th ed.)

Clark, Michael. Reason to Believe: A Practical Guide to Psychic Phenomena. Avon Books, 1997.