Cita APA (7th ed.)

Berstein, D. A., & Roy, E. J. (1994). Psychology (3rd.ed.). Houghton Mifflin.

Cita Chicago (17th ed.)

Berstein, Douglas A., i Edward J. Roy. Psychology. 3rd.ed. Geneva: Houghton Mifflin, 1994.

Cita MLA (9th ed.)

Berstein, Douglas A., i Edward J. Roy. Psychology. 3rd.ed. Houghton Mifflin, 1994.

Atenció: Aquestes cites poden no estar 100% correctes.