Dunlop, J. T. (1978). Labor in the twentieth century. ELSEVIER.
Chicago Style (17th ed.) CitationDunlop, John T. Labor in the Twentieth Century. ELSEVIER, 1978.
MLA引文Dunlop, John T. Labor in the Twentieth Century. ELSEVIER, 1978.
警告：這些引文格式不一定是100％准確.