APA-referens (7:e uppl.)

Hagen, E. E. (1975). The economics of development (Rev ed.). R.D. Irwin.

Chicago-referens (17:e uppl.)

Hagen, Everett Einar. The Economics of Development. Rev ed. Homewood, Ill: R.D. Irwin, 1975.

MLA-referens (9:e uppl.)

Hagen, Everett Einar. The Economics of Development. Rev ed. R.D. Irwin, 1975.