APA সাইটেশন

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

শিকাগো স্টাইলে সাইটেশন

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

এমএলএ সাইটেশন

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