Cita APA (7a ed.)

Pettijohn, J. B. (1988). Profit +: User's guide. Dryden Press.

Cita Chicago Style (17a ed.)

Pettijohn, James B. Profit +: User's Guide. Hinsdale, Illinois: Dryden Press, 1988.

Cita MLA (9a ed.)

Pettijohn, James B. Profit +: User's Guide. Dryden Press, 1988.