George, C. S., & Cole, K. (1992). Supervision in action: The art of managing (3rd ed.). Prentice Hall.
Chicago Style (17. basım) AtıfGeorge, Claude S., ve Kris Cole. Supervision in Action: The Art of Managing. 3rd ed. New York: Prentice Hall, 1992.
MLA (9th ed.) AtıfGeorge, Claude S., ve Kris Cole. Supervision in Action: The Art of Managing. 3rd ed. Prentice Hall, 1992.
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