Παραπομπή APA
Koontz, H., & O'Donnell, C. (1959). Principles of management: An analysis of managerial functions (2nd ed.). New York: McGraw-Hill.
Παραπομπή Chicago StyleKoontz, Harold, and Cyril O'Donnell. Principles of Management: An Analysis of Managerial Functions. 2nd ed. New York: McGraw-Hill, 1959.
Παραπομπή MLAKoontz, Harold, and Cyril O'Donnell. Principles of Management: An Analysis of Managerial Functions. 2nd ed. New York: McGraw-Hill, 1959.
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