APA-viite (7. p.)

Diaz, Y., Inciong, R. J., Rodriguez, G., Salvacruz, V., & Suganob, P. (1984). A Systems study on the Energy Research and Development Division of the Philippine National Oil Company. College of Engineering.

Chicago-viite (17. p.)

Diaz, Yolanda, Rodrigo Jr Inciong, Gerardo Rodriguez, Vivien Salvacruz, ja Perlita Suganob. A Systems Study on the Energy Research and Development Division of the Philippine National Oil Company. Diliman, Quezon City: College of Engineering, 1984.

MLA-viite (9. p.)

Diaz, Yolanda, et al. A Systems Study on the Energy Research and Development Division of the Philippine National Oil Company. College of Engineering, 1984.