APA aipamena

Pacheco, E. S. (1983). Six semesters of PSI: A evaluation. Philippine Engineering Journal.

Chicago Style aipamena

Pacheco, Edgardo S. "Six Semesters of PSI: A Evaluation." Philippine Engineering Journal 1983.

MLA aipamena

Pacheco, Edgardo S. "Six Semesters of PSI: A Evaluation." Philippine Engineering Journal, 1983.