Cita APA (7th ed.)

Krugman, P. R. (1999). The return of depression economics (First edition.). W.W. Norton.

Cita Chicago (17th ed.)

Krugman, Paul R. The Return of Depression Economics. First edition. New York: W.W. Norton, 1999.

Cita MLA (8th ed.)

Krugman, Paul R. The Return of Depression Economics. First edition. W.W. Norton, 1999.