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.
Цитирование в стиле Чикаго (17-е изд.)Africa, Gilbert, et al. A Total Systems Study on the Marketing System of Metro, Inc. Diliman, Quezon City: College of Engineering, 1987.
Цитирование MLA (9-е изд.)Africa, Gilbert, et al. A Total Systems Study on the Marketing System of Metro, Inc. College of Engineering, 1987.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.