Cita APA (7a ed.)

Ellis, A., Becker, I. M., & Powers, M. (1982). A guide to personal happiness. Wilshire.

Cita Chicago Style (17a ed.)

Ellis, Albert, Irving M. Becker, y Melvin Powers. A Guide to Personal Happiness. Hollywood, California: Wilshire, 1982.

Cita MLA (9a ed.)

Ellis, Albert, et al. A Guide to Personal Happiness. Wilshire, 1982.