APA (7th ed.) Citation

Gardner, M. (1990). Gardner's whys & wherefores / Martin Gardner. Oxford University Press.

Chicago Style (17th ed.) Citation

Gardner, Martin. Gardner's Whys & Wherefores / Martin Gardner. Oxford: Oxford University Press, 1990.

MLA (9th ed.) Citation

Gardner, Martin. Gardner's Whys & Wherefores / Martin Gardner. Oxford University Press, 1990.

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