Cita APA

Sells, S. (1962). Essentials of psychology. New York: The Ronald Press Company.

Chicago Style Citation

Sells, S.B. Essentials of Psychology. New York: The Ronald Press Company, 1962.

Cita MLA

Sells, S.B. Essentials of Psychology. New York: The Ronald Press Company, 1962.

Atenció: Aquestes cites poden no estar 100% correctes.