Heller, R. (2000). The Complete Guide to Modern Management (5th.). Tata McGraw-Hill.
Chicago Style aipamenaHeller, Robert. The Complete Guide to Modern Management. 5th. New Delhi: Tata McGraw-Hill, 2000.
MLA aipamenaHeller, Robert. The Complete Guide to Modern Management. 5th. Tata McGraw-Hill, 2000.
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