APA (7th ed.) Citation

Thaler Richard H. (2007). Nudge: Improving decisions about health,wealth and happiness. Sphere books.

Chicago Style (17th ed.) Citation

Thaler Richard H. Nudge: Improving Decisions About Health,wealth and Happiness. London: Sphere books, 2007.

MLA (9th ed.) Citation

Thaler Richard H. Nudge: Improving Decisions About Health,wealth and Happiness. Sphere books, 2007.

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