Levin, R. I. (1992). Planning and control with PERT/ CPM. Tata McGraw-Hill.
Chicago Edition CitationLevin, Richard I. Planning and Control with PERT/ CPM. New Delhi: Tata McGraw-Hill, 1992.
Cita MLALevin, Richard I. Planning and Control with PERT/ CPM. Tata McGraw-Hill, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.