Cruz, J. J. (1980). PERT/CPM program evaluation review technique/critical path method. Philippine Engineering Journal.
Citazione stile Chigago Style (17a edizione)Cruz, Jose J. "PERT/CPM Program Evaluation Review Technique/critical Path Method." Philippine Engineering Journal 1980.
Citatione MLA (9a ed.)Cruz, Jose J. "PERT/CPM Program Evaluation Review Technique/critical Path Method." Philippine Engineering Journal, 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.