Green, R. T. (1978). The United States and world trade. New York: Praeger Publishers.
Trích dẫn kiểu ChicagoGreen, Robert T. The United States and World Trade. New York: Praeger Publishers, 1978.
MLA引文Green, Robert T. The United States and World Trade. New York: Praeger Publishers, 1978.
警告：這些引文格式不一定是100％准確.