APA (7th ed.) Citation

Gardner, M. (1978). Aha! Insight. Scientific American [u.a.].

Chicago Style (17th ed.) Citation

Gardner, Martin. Aha! Insight. New York [u.a.]: Scientific American [u.a.], 1978.

MLA (9th ed.) Citation

Gardner, Martin. Aha! Insight. Scientific American [u.a.], 1978.