Alampay, E., Lacanaria, S., Escano, M., Mamutuk, N. R., & Valera, J. (1987). Methods study on United Industrial Bag Company Inc. College of Engineering.
Citazione stile Chigago Style (17a edizione)Alampay, Erwin, Sofia Lacanaria, Marco Escano, Nattalie R. Mamutuk, e Jasmin Valera. Methods Study on United Industrial Bag Company Inc. Diliman, Quezon City: College of Engineering, 1987.
Citatione MLA (9a ed.)Alampay, Erwin, et al. Methods Study on United Industrial Bag Company Inc. College of Engineering, 1987.
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