Heldman, K. (2007). Microsoft office excel 2007 for project managers. Indianapolis, Ind: Wiley Pub.
Chicago Style aipamenaHeldman, Kim. Microsoft Office Excel 2007 for Project Managers. Indianapolis, Ind: Wiley Pub, 2007.
MLA aipamenaHeldman, Kim. Microsoft Office Excel 2007 for Project Managers. Indianapolis, Ind: Wiley Pub, 2007.
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