Koontz, H. (2015). Essentials of Management (10th.). McGraw Hill Education.
Chicago-viite (17. p.)Koontz, Harold. Essentials of Management. 10th. McGraw Hill Education, 2015.
MLA-viite (9. p.)Koontz, Harold. Essentials of Management. 10th. McGraw Hill Education, 2015.
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