APA (7th ed.) Citation

Boyd, J. (1976). Barnard's planet (Berkley medallion ed.). Berkeley Pub. Corp..

Chicago Style (17th ed.) Citation

Boyd, John. Barnard's Planet. Berkley medallion ed. New York: Berkeley Pub. Corp., 1976.

MLA (8th ed.) Citation

Boyd, John. Barnard's Planet. Berkley medallion ed. Berkeley Pub. Corp., 1976.