Bolanos, R. A., de la Paz, M. H. R., Paragas, E. A. V., & Sy, R. T. (1991). An Information systems study on the Environmental Impact Assessment Group. College of Engineering.
Chicago-referens (17:e uppl.)Bolanos, Ronaldo A., Mario Henry R. de la Paz, Edgar Allan V. Paragas, och Roger Tanlimco Sy. An Information Systems Study on the Environmental Impact Assessment Group. Diliman, Quezon City: College of Engineering, 1991.
MLA-referens (9:e uppl.)Bolanos, Ronaldo A., et al. An Information Systems Study on the Environmental Impact Assessment Group. College of Engineering, 1991.
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