Cita APA (7a ed.)

Krugman, P. R. (2009). The return of depression economics and the crisis of 2008 (1st ed. [new, greatly updated ed.].). W.W. Norton & Company.

Cita Chicago Style (17a ed.)

Krugman, Paul R. The Return of Depression Economics and the Crisis of 2008. 1st ed. [new, greatly updated ed.]. New York [etc.]: W.W. Norton & Company, 2009.

Cita MLA (9a ed.)

Krugman, Paul R. The Return of Depression Economics and the Crisis of 2008. 1st ed. [new, greatly updated ed.]. W.W. Norton & Company, 2009.