APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (8:e uppl.)

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