Cita APA (7a ed.)

Pettijohn, T. F. (1991). The encyclopedic dictionary of psychology (4th ed.). Dushkin Publishing Group.

Cita Chicago Style (17a ed.)

Pettijohn, Terry F. The Encyclopedic Dictionary of Psychology. 4th ed. Guilford, Conn.: Dushkin Publishing Group, 1991.

Cita MLA (8a ed.)

Pettijohn, Terry F. The Encyclopedic Dictionary of Psychology. 4th ed. Dushkin Publishing Group, 1991.