Cita APA (7th ed.)

Bautista & Lirios, C. (1991). The Photocopy service system in the College of Engineering. College of Engineering.

Cita Chicago (17th ed.)

Bautista i Chit Lirios. The Photocopy Service System in the College of Engineering. Diliman, Quezon City: College of Engineering, 1991.

Cita MLA (9th ed.)

Bautista i Chit Lirios. The Photocopy Service System in the College of Engineering. College of Engineering, 1991.