APA Style

Thaler, R, H., Sunstein, C, R. (2009). Nudge: Improving Decisions About Health, Wealth, and Happiness [Expanded Edition] . New York: Gildan Media, LLC.

MLA Style

Thaler, Richard, H.., Sunstein, Cass, R.. "Nudge: Improving Decisions About Health, Wealth, and Happiness [Expanded Edition]". New York: Gildan Media, LLC, 2009. Perpustakaan KALBIS.