Carrero, G. T., Ty, L. B. E., & Villanueva, F. C. (1999). Nation Paper Products and Printing Corporation: A production and operations management study. College of Engineering.
Chicago-referens (17:e uppl.)Carrero, Geraldine T., Laura Blossom E. Ty, och Farrah C. Villanueva. Nation Paper Products and Printing Corporation: A Production and Operations Management Study. Diliman, Quezon City: College of Engineering, 1999.
MLA-referens (9:e uppl.)Carrero, Geraldine T., et al. Nation Paper Products and Printing Corporation: A Production and Operations Management Study. College of Engineering, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.