Cita APA (7th ed.)

Advincula, O., Ablan, E., Autajay, A., Bucsit, A., & Ludovice, L. (1986). An Information System Study on the Billing and Collection System of Luzon Integrated Services, Inc. College of Engineering.

Cita Chicago (17th ed.)

Advincula, Ophelia, Evelyn Ablan, Alan Autajay, Angelina Bucsit, i Lyna Ludovice. An Information System Study on the Billing and Collection System of Luzon Integrated Services, Inc. Diliman, Quezon City: College of Engineering, 1986.

Cita MLA (9th ed.)

Advincula, Ophelia, et al. An Information System Study on the Billing and Collection System of Luzon Integrated Services, Inc. College of Engineering, 1986.