Παραπομπή APA

Pfiffner, J. M., & Fels, M. (1964). Supervision of personnel. Prentice hall.

Παραπομπή Chicago Style

Pfiffner, John M., και Marshall Fels. Supervision of Personnel. New Jersey: Prentice hall, 1964.

Παραπομπή MLA

Pfiffner, John M., και Marshall Fels. Supervision of Personnel. Prentice hall, 1964.