HELLER, R. (1996). THE COMPLETE GUIDE TO MODERN MANAGEMENT. JAICO PUBLISHING HOUSE.
Chicago-čujuhus (17. p.)HELLER, ROBERT. THE COMPLETE GUIDE TO MODERN MANAGEMENT. BOMBAY: JAICO PUBLISHING HOUSE, 1996.
MLA-čujuhus (9. p.)HELLER, ROBERT. THE COMPLETE GUIDE TO MODERN MANAGEMENT. JAICO PUBLISHING HOUSE, 1996.
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