APA (7. basım) Alıntı

Abarra, G., De Guzman, L. A., De Jesus, E., & Katigbak, C. M. (2003). A Total systems study on Company X. College of Engineering.

Chicago Style (17. basım) Atıf

Abarra, Geraldine, Lorie Ann De Guzman, Eleanor De Jesus, ve Cristel Marie Katigbak. A Total Systems Study on Company X. Diliman, Quezon City: College of Engineering, 2003.

MLA (9th ed.) Atıf

Abarra, Geraldine, et al. A Total Systems Study on Company X. College of Engineering, 2003.