Gaya APA

Cowen, T. (2007). Descover your inner economist : use incentives to fall in love, survive your next meeting , and motivate your dentist . New York: Penguin Group (USA) inc.

Gaya MLA

Cowen, Tyler. "Descover your inner economist : use incentives to fall in love, survive your next meeting , and motivate your dentist". New York: Penguin Group (USA) inc, 2007. Text.