Citazione Stile APA (7a Edizione)

Jacobson, P. B. (1950). Duties of school principals (2d ed.). Prentice-Hall.

Citazione stile Chigago Style (17a edizione)

Jacobson, Paul Benjamin. Duties of School Principals. 2d ed. New York: Prentice-Hall, 1950.

Citatione MLA (9a ed.)

Jacobson, Paul Benjamin. Duties of School Principals. 2d ed. Prentice-Hall, 1950.