Gaya APA

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

Gaya MLA

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