Cita APA (7a ed.)

PETTIJOHN, T. F. (1987). Psychology A Concise Introduction Terry F. Pettijohn. The Dushkin Publising Group.

Cita Chicago Style (17a ed.)

PETTIJOHN, Terry F. Psychology A Concise Introduction Terry F. Pettijohn. The Dushkin Publising Group, 1987.

Cita MLA (8a ed.)

PETTIJOHN, Terry F. Psychology A Concise Introduction Terry F. Pettijohn. The Dushkin Publising Group, 1987.