Hartley, R. F. (2000). Management mistakes and successes (6th ed.). New York: John Wiley and Sons.
Παραπομπή Chicago StyleHartley, Robert F. Management Mistakes and Successes. 6th ed. New York: John Wiley and Sons, 2000.
Παραπομπή MLAHartley, Robert F. Management Mistakes and Successes. 6th ed. New York: John Wiley and Sons, 2000.
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