APA (7th ed.) Citation

Gardner, M. (1989). Gardner's whys & wherefores. University of Chicago Press.

Chicago Style (17th ed.) Citation

Gardner, Martin. Gardner's Whys & Wherefores. Chicago: University of Chicago Press, 1989.

MLA (9th ed.) Citation

Gardner, Martin. Gardner's Whys & Wherefores. University of Chicago Press, 1989.

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