Cita APA (7th ed.)

Morris, C. G. (1991). Understanding psychology. Prentice-Hall.

Cita Chicago (17th ed.)

Morris, Charles G. Understanding Psychology. Englewood Cliffs, N.J: Prentice-Hall, 1991.

Cita MLA (9th ed.)

Morris, Charles G. Understanding Psychology. Prentice-Hall, 1991.