APA

Thaler Richard H, Sunstein Cass R, . (2009). Nudge : Improving decisions about health, wealth and happiness. London: Penguin Books.

Chicago

Thaler Richard H, Sunstein Cass R, . 2009. Nudge : Improving decisions about health, wealth and happiness. London: Penguin Books.

Harvard

Thaler Richard H, Sunstein Cass R, . (2009). Nudge : Improving decisions about health, wealth and happiness. London: Penguin Books.

MLA

Thaler Richard H, Sunstein Cass R, . Nudge : Improving decisions about health, wealth and happiness. London: Penguin Books. 2009.