Cita APA

Boyd, W. C., & Asimov, I. (1955). Races and People. New York: Abelard-Schuman.

Chicago Style Citation

Boyd, William C., i Isaac Asimov. Races and People. New York: Abelard-Schuman, 1955.

Cita MLA

Boyd, William C., i Isaac Asimov. Races and People. New York: Abelard-Schuman, 1955.

Atenció: Aquestes cites poden no estar 100% correctes.