APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Morris, Charles G. Understanding Psychology. Englewood Cliffs, New Jersey: Prentice Hall, Inc, 1991.

MLA (9th ed.) Citation

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