De Guzman, R., Nicdao, D., Santos, D., & Sy, S. (1984). A Study on the management information system of Empty Sack Inventory NFA. College of Engineering.
Chicago-referens (17:e uppl.)De Guzman, Rene, Derrick Nicdao, Dennis Santos, och Shirley Sy. A Study on the Management Information System of Empty Sack Inventory NFA. Diliman, Quezon City: College of Engineering, 1984.
MLA-referens (9:e uppl.)De Guzman, Rene, et al. A Study on the Management Information System of Empty Sack Inventory NFA. College of Engineering, 1984.
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