Style de citation APA (7e éd.)

Africa, G., Amilbangsa, G., Blancada, V., Costales, R., Flores, R., Quebral, G., . . . Umali, A. C. (1987). A Total systems study on the Marketing System of Metro, Inc. College of Engineering.

Style de citation Chicago (17e éd.)

Africa, Gilbert, et al. A Total Systems Study on the Marketing System of Metro, Inc. Diliman, Quezon City: College of Engineering, 1987.

Style de citation MLA (9e éd.)

Africa, Gilbert, et al. A Total Systems Study on the Marketing System of Metro, Inc. College of Engineering, 1987.