Citazione Stile APA (7a Edizione)

Hagen, E. E. (1986). The economics of development (4th ed.). Irwin.

Citazione stile Chigago Style (17a edizione)

Hagen, Everett Einar. The Economics of Development. 4th ed. Homewood, Ill: Irwin, 1986.

Citatione MLA (9a ed.)

Hagen, Everett Einar. The Economics of Development. 4th ed. Irwin, 1986.