APA (7th ed.) Citation

GORDON. (2003). Are you smarter than you think? Penguin Books.

Chicago Style (17th ed.) Citation

GORDON. Are You Smarter than You Think? New York: Penguin Books, 2003.

MLA (9th ed.) Citation

GORDON. Are You Smarter than You Think? Penguin Books, 2003.

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