Catibog, E., Lainez, L., & Regalado, M. (1999). A Systems study of Jose S. Galang and Sons Concrete Products, Inc. College of Engineering.
Chicago-Zitierstil (17. Ausg.)Catibog, Eliza, Leon Lainez, und Mitch Regalado. A Systems Study of Jose S. Galang and Sons Concrete Products, Inc. Diliman, Quezon City: College of Engineering, 1999.
MLA-Zitierstil (9. Ausg.)Catibog, Eliza, et al. A Systems Study of Jose S. Galang and Sons Concrete Products, Inc. College of Engineering, 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.