APA (7th ed.) Citation

Gardner, M. (1967). The ambidextrous universe / Martin Gardner. Penguin Press.

Chicago Style (17th ed.) Citation

Gardner, Martin. The Ambidextrous Universe / Martin Gardner. London: Penguin Press, 1967.

MLA (9th ed.) Citation

Gardner, Martin. The Ambidextrous Universe / Martin Gardner. Penguin Press, 1967.

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