APA (7th ed.) Citation
Thaler, R. H., & Sunstein, C. R. (2008). Nudge: Improving decisions about health, wealth, and happiness. Yale University Press.
Chicago Style (17th ed.) Citation
Thaler, Richard H., and Cass R. Sunstein. Nudge: Improving Decisions About Health, Wealth, and Happiness. New Haven: Yale University Press, 2008.
MLA (9th ed.) Citation
Thaler, Richard H., and Cass R. Sunstein. Nudge: Improving Decisions About Health, Wealth, and Happiness. Yale University Press, 2008.
Warning: These citations may not always be 100% accurate.