Citazione APA

Clarke, A. C. (1958). Profiles of the future an enquiry into the limits of the possible. Harper.

Stile di citazione Chicago

Clarke, Arthur C. Profiles of the Future an Enquiry into the Limits of the Possible. New York: Harper, 1958.

Citazione MLA

Clarke, Arthur C. Profiles of the Future an Enquiry into the Limits of the Possible. Harper, 1958.