Gaya APA

Marks, J, R, S. et al (1985). Handbook of educational supervision : a guide for the practitioner (3rd ed.). Massachusetts: Allyn and Bacon.

Gaya MLA

Marks, James, Robert,, Sir. et al. "Handbook of educational supervision : a guide for the practitioner". 3rd ed. Massachusetts: Allyn and Bacon, 1985. Text.