Παραπομπή APA

Bossing, N. L. (1966). Principles of secondary education./2 e (2nd ed.). Prentice-Hall.

Παραπομπή Chicago Style

Bossing, Nelson L. Principles of Secondary Education./2 E. 2nd ed. New Delhi: Prentice-Hall, 1966.

Παραπομπή MLA

Bossing, Nelson L. Principles of Secondary Education./2 E. 2nd ed. Prentice-Hall, 1966.