Cita APA

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

Chicago Edition Citation

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

Cita MLA

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