Gray, I. (1979). The engineer in transition to management: A learning tool for the engineer or other professional newly promoted to management. N.Y.: IEEE.
Παραπομπή Chicago StyleGray, Irwin. The Engineer in Transition to Management: A Learning Tool for the Engineer or Other Professional Newly Promoted to Management. N.Y.: IEEE, 1979.
Παραπομπή MLAGray, Irwin. The Engineer in Transition to Management: A Learning Tool for the Engineer or Other Professional Newly Promoted to Management. N.Y.: IEEE, 1979.
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