Caluglug, L., Ilarde, D., Dimalanta, D., Llona, E., Paul, J. J., & Tienzo, R. (1981). A Project study on Peterson, Inc. College of Engineering.
Chicago-referens (17:e uppl.)Caluglug, Lot, Dino Ilarde, Dominic Dimalanta, Ellery Llona, Jeremias Jr Paul, och Ronald Tienzo. A Project Study on Peterson, Inc. Diliman, Quezon City: College of Engineering, 1981.
MLA-referens (9:e uppl.)Caluglug, Lot, et al. A Project Study on Peterson, Inc. College of Engineering, 1981.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.