DuBrin, A. J. (2000). Essentials of management (5th ed.). South-Western.
Chicago-viite (17. p.)DuBrin, Andrew J. Essentials of Management. 5th ed. Cincinnati, Ohio: South-Western, 2000.
MLA-viite (9. p.)DuBrin, Andrew J. Essentials of Management. 5th ed. South-Western, 2000.
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