Bisis Leonard. (1997). Entrepreneur magazin: Guide to professional services. John Wiley & Sons.
Chicago Style (17th ed.) CitationBisis Leonard. Entrepreneur Magazin: Guide to Professional Services. USA: John Wiley & Sons, 1997.
Trích dẫn MLABisis Leonard. Entrepreneur Magazin: Guide to Professional Services. John Wiley & Sons, 1997.
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