Heisler, S. I. (1994). The Wiley project engineer's desk reference: Project engineering,operations, and management. New York: Wiley.
Παραπομπή Chicago StyleHeisler, Sanford I. The Wiley Project Engineer's Desk Reference: Project Engineering,operations, and Management. New York: Wiley, 1994.
Παραπομπή MLAHeisler, Sanford I. The Wiley Project Engineer's Desk Reference: Project Engineering,operations, and Management. New York: Wiley, 1994.
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