APA (7th ed.) Citation

Sunstein, C. R. (2014). Why nudge?: The politics of libertarian paternalism. Yale University Press.

Chicago Style (17th ed.) Citation

Sunstein, Cass R. Why Nudge?: The Politics of Libertarian Paternalism. New Haven: Yale University Press, 2014.

MLA (9th ed.) Citation

Sunstein, Cass R. Why Nudge?: The Politics of Libertarian Paternalism. Yale University Press, 2014.