Levy, F., Thompson, G., and Wiest, J. "The ABC's of the Critical Path Method." Harvard Business Review 41, no. 5 (October 1963).
Moder, J., Phillips, C. R., and Davis, E. W. Project Management with CPM and PERT and Precedence Diagramming , 3rd ed. New York: Van Nostrand Reinhold, 1983.
O'Brian, J. CPM in Construction Management . New York: McGraw-Hill, 1965.
Wiest, J. D., and Levy, F. K. A Management Guide to PERT/CPM , 2nd ed. Upper Saddle River, NJ: Prentice Hall, 1977.