O'Brien, J. J. (1965). CPM in construction management: Scheduling by the critical path mathod. McGraw Hill.
शिकागो स्टाइल उद्धरणO'Brien, James J. CPM in Construction Management: Scheduling by the Critical Path Mathod. New York: McGraw Hill, 1965.
एमएलए उद्धरणO'Brien, James J. CPM in Construction Management: Scheduling by the Critical Path Mathod. McGraw Hill, 1965.
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