APA (7e ed.) Bronvermelding

Caoyonan, L. A., Duque, R., & Tolentino, J. F. (1999). A Production systems study on Philippine Electric Corporation. College of Engineering.

Chicago (17e ed.) Bronvermelding

Caoyonan, Lizelle Anne, Ricci Duque, en Jamie Fer Tolentino. A Production Systems Study on Philippine Electric Corporation. Diliman, Quezon City: College of Engineering, 1999.

MLA (9e ed.) Bronvermelding

Caoyonan, Lizelle Anne, et al. A Production Systems Study on Philippine Electric Corporation. College of Engineering, 1999.