O'Brien, J. J. (1965). CPM in construction management: Scheduling by the critical path mathod. McGraw Hill.
Dyfyniad Arddull ChicagoO'Brien, James J. CPM in Construction Management: Scheduling by the Critical Path Mathod. New York: McGraw Hill, 1965.
Dyfyniad MLAO'Brien, James J. CPM in Construction Management: Scheduling by the Critical Path Mathod. McGraw Hill, 1965.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.