Gadong, J. R., Mutuc, B., Sanagustin, M. A., Soriano, J. P., & Valdes, R. A. J. (1990). Metro Manila Transit Corporation Property Section (a management information system study). College of Engineering.
Chicago-referens (17:e uppl.)Gadong, Josefa Remedios, Bernadette Mutuc, Maria Aurora Sanagustin, Jose Paolo Soriano, och Rafael Aquino Jr Valdes. Metro Manila Transit Corporation Property Section (a Management Information System Study). Diliman, Quezon City: College of Engineering, 1990.
MLA-referens (9:e uppl.)Gadong, Josefa Remedios, et al. Metro Manila Transit Corporation Property Section (a Management Information System Study). College of Engineering, 1990.
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