APA (7th ed.) Citation

Thaler, R. H., & Sunstein, C. R. (2009). Nudge : improving decisions about health, wealth and happiness / Richard H. Thaler and Cass R. Sunstein: Improving decisions about health, wealth and happiness (New international ed.). Penguin.

Chicago Style (17th ed.) Citation

Thaler, Richard H., and Cass R. Sunstein. Nudge : Improving Decisions About Health, Wealth and Happiness / Richard H. Thaler and Cass R. Sunstein: Improving Decisions About Health, Wealth and Happiness. New international ed. London: Penguin, 2009.

MLA (9th ed.) Citation

Thaler, Richard H., and Cass R. Sunstein. Nudge : Improving Decisions About Health, Wealth and Happiness / Richard H. Thaler and Cass R. Sunstein: Improving Decisions About Health, Wealth and Happiness. New international ed. Penguin, 2009.

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