Thaler, R. H., & Sunstein, C. R. (2009). Nudge: Improving decisions about health, wealth and happiness (Revised edition.). Penguin Books.
Cita Chicago (17th ed.)Thaler, Richard H., i Cass R. Sunstein. Nudge: Improving Decisions About Health, Wealth and Happiness. Revised edition. Great Britain: Penguin Books, 2009.
Cita MLA (9th ed.)Thaler, Richard H., i Cass R. Sunstein. Nudge: Improving Decisions About Health, Wealth and Happiness. Revised edition. Penguin Books, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.