Cita APA (7th ed.)

Gardner, M. (1978). Aha! insight (1a. ed.). Scientific American.

Cita Chicago (17th ed.)

Gardner, Martin. Aha! Insight. 1a. ed. Nueva York: Scientific American, 1978.

Cita MLA (9th ed.)

Gardner, Martin. Aha! Insight. 1a. ed. Scientific American, 1978.