Pryor, F. L. (1963). The Communist foreign trade system. London: M.I.T. Press.
Trích dẫn kiểu ChicagoPryor, Frederic L. The Communist Foreign Trade System. London: M.I.T. Press, 1963.
MLA引文Pryor, Frederic L. The Communist Foreign Trade System. London: M.I.T. Press, 1963.
警告：這些引文格式不一定是100％准確.