George, C. S. (1977). Supervision in action: The art of managing others. Prentice Hall of India.
Čikaški stil citiranjaGeorge, Claude S. Supervision in Action: The Art of Managing Others. Prentice Hall of India, 1977.
MLA način citiranjaGeorge, Claude S. Supervision in Action: The Art of Managing Others. Prentice Hall of India, 1977.
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