Melotti, U. (1972). Marx and the third vorld. London: The Macmillan press.
Trích dẫn kiểu ChicagoMelotti, Umberto. Marx and the Third Vorld. London: The Macmillan press, 1972.
MLA引文Melotti, Umberto. Marx and the Third Vorld. London: The Macmillan press, 1972.
警告：这些引文格式不一定是100％准确.