Fishman, A. E. (2006). 7 Secrets of Great Entrepreneurial Masters: The Gem Power Formula for Lifelong Success. New York: McGraw-Hill.
Παραπομπή Chicago StyleFishman, Allen E. 7 Secrets of Great Entrepreneurial Masters: The Gem Power Formula for Lifelong Success. New York: McGraw-Hill, 2006.
Παραπομπή MLAFishman, Allen E. 7 Secrets of Great Entrepreneurial Masters: The Gem Power Formula for Lifelong Success. New York: McGraw-Hill, 2006.
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