Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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