Catibog, E., Lainez, L., & Regalado, M. (1999). A Systems study of Jose S. Galang and Sons Concrete Products, Inc. College of Engineering.
Citazione stile Chigago Style (17a edizione)Catibog, Eliza, Leon Lainez, e Mitch Regalado. A Systems Study of Jose S. Galang and Sons Concrete Products, Inc. Diliman, Quezon City: College of Engineering, 1999.
Citatione MLA (9a ed.)Catibog, Eliza, et al. A Systems Study of Jose S. Galang and Sons Concrete Products, Inc. College of Engineering, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.