Cita APA (7th ed.)

Jacobson, P. B., & Reavis, W. C. (1942). Duties of school principals. Prentice-Hall, inc.

Cita Chicago (17th ed.)

Jacobson, Paul Benjamin, i William Claude Reavis. Duties of School Principals. New York: Prentice-Hall, inc, 1942.

Cita MLA (9th ed.)

Jacobson, Paul Benjamin, i William Claude Reavis. Duties of School Principals. Prentice-Hall, inc, 1942.