APA aipamena

Ong, M., Sy, B., Tiu, D., & Tupaz, J. F. (1993). An Information systems study on Philippine Phosphate Fertilizer Corporation. College of Engineering.

Chicago Style aipamena

Ong, Michael, Bernabeth Sy, Daniel Tiu, and Jovi Francis Tupaz. An Information Systems Study on Philippine Phosphate Fertilizer Corporation. Diliman, Quezon City: College of Engineering, 1993.

MLA aipamena

Ong, Michael, et al. An Information Systems Study on Philippine Phosphate Fertilizer Corporation. College of Engineering, 1993.