Callahan, K. R. (2004). Essentials of strategic project management. Hoboken, NJ: John Wiley & Sons, Inc.
शिकागो स्टाइल उद्धरणCallahan, Kevin R. Essentials of Strategic Project Management. Hoboken, NJ: John Wiley & Sons, Inc, 2004.
एमएलए उद्धरणCallahan, Kevin R. Essentials of Strategic Project Management. Hoboken, NJ: John Wiley & Sons, Inc, 2004.
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