Yukl, G. A. (1989). Leadership in organizations (2nd ed.). Englewood Cliffs: Prentice-Hall International.
Παραπομπή Chicago StyleYukl, Gary A. Leadership in Organizations. 2nd ed. Englewood Cliffs: Prentice-Hall International, 1989.
Παραπομπή MLAYukl, Gary A. Leadership in Organizations. 2nd ed. Englewood Cliffs: Prentice-Hall International, 1989.
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