Citazione Stile APA (7a Edizione)

Simpson, E. S. (1987). The developing world: An introduction. Longman.

Citazione stile Chigago Style (17a edizione)

Simpson, E. S. The Developing World: An Introduction. New York: Longman, 1987.

Citatione MLA (9a ed.)

Simpson, E. S. The Developing World: An Introduction. Longman, 1987.