APA (7th ed.) Citation

Gardner, M. (2006). Aha!: A two volume collection. Mathematical Association of America.

Chicago Style (17th ed.) Citation

Gardner, Martin. Aha!: A Two Volume Collection. [Washington, DC]: Mathematical Association of America, 2006.

MLA (9th ed.) Citation

Gardner, Martin. Aha!: A Two Volume Collection. Mathematical Association of America, 2006.

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