Bunyi, P., Cabulisan, L., Castro, A. M., & Marbil, A. (1991). Evaluation of the maintenance system and electricity conservation program of Melchor Hall. College of Engineering.
Citazione stile Chigago Style (17a edizione)Bunyi, Perlyn, Lala Cabulisan, Antonio M. Castro, e Angie Marbil. Evaluation of the Maintenance System and Electricity Conservation Program of Melchor Hall. Diliman, Quezon City: College of Engineering, 1991.
Citatione MLA (9a ed.)Bunyi, Perlyn, et al. Evaluation of the Maintenance System and Electricity Conservation Program of Melchor Hall. College of Engineering, 1991.
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