Robert, H. D. (1998). Entrepreneurship (4th ed.). Irwin McGraw-Hill.
Chicago Edition CitationRobert, Hisrich D. Entrepreneurship. 4th ed. Boston: Irwin McGraw-Hill, 1998.
Deismireacht MLARobert, Hisrich D. Entrepreneurship. 4th ed. Irwin McGraw-Hill, 1998.
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