Cruz, J. J. (1980). PERT/CPM program evaluation review technique/critical path method. Philippine Engineering Journal.
Chicago Style aipamenaCruz, Jose J. "PERT/CPM Program Evaluation Review Technique/critical Path Method." Philippine Engineering Journal 1980.
MLA aipamenaCruz, Jose J. "PERT/CPM Program Evaluation Review Technique/critical Path Method." Philippine Engineering Journal, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.