Citazione Stile APA (7a Edizione)

Hughes, B. (1985). World futures: A critical analysis of alternatives. Johns Hopkins University Press.

Citazione stile Chigago Style (17a edizione)

Hughes, Barry. World Futures: A Critical Analysis of Alternatives. Baltimore: Johns Hopkins University Press, 1985.

Citatione MLA (8a ed.)

Hughes, Barry. World Futures: A Critical Analysis of Alternatives. Johns Hopkins University Press, 1985.