APA (7th ed.) Citation

Thaler, R. H., & Sunstein, C. R. (2008). Nudge: Improving decisions about health. Yale University Press.

Chicago Style (17th ed.) Citation

Thaler, Richard H., and Cass R. Sunstein. Nudge: Improving Decisions About Health. New Haven: Yale University Press, 2008.

MLA (9th ed.) Citation

Thaler, Richard H., and Cass R. Sunstein. Nudge: Improving Decisions About Health. Yale University Press, 2008.