Cita APA (7th ed.)

Drake, T. L., & Roe, W. H. (1986). The principalship (3d ed.). Macmillan.

Cita Chicago (17th ed.)

Drake, Thelbert L., i William Henry Roe. The Principalship. 3d ed. New York: Macmillan, 1986.

Cita MLA (9th ed.)

Drake, Thelbert L., i William Henry Roe. The Principalship. 3d ed. Macmillan, 1986.