APA (7th ed.) Citation

Gardiner, A. (1987). Discovering mathematics: The art of investigation. Clarendon Press.

Chicago Style (17th ed.) Citation

Gardiner, A. Discovering Mathematics: The Art of Investigation. Oxford: Clarendon Press, 1987.

MLA (9th ed.) Citation

Gardiner, A. Discovering Mathematics: The Art of Investigation. Clarendon Press, 1987.

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