APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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