APA-referens (7:e uppl.)

Hagen, E. E. (1980). The economics of development (3d ed.). R. D. Irwin ; Irwin-Dorsey.

Chicago-referens (17:e uppl.)

Hagen, Everett E. The Economics of Development. 3d ed. Homewood, Ill. : Georgetown, Ont.: R. D. Irwin ; Irwin-Dorsey, 1980.

MLA-referens (8:e uppl.)

Hagen, Everett E. The Economics of Development. 3d ed. R. D. Irwin ; Irwin-Dorsey, 1980.