Dunlop, J. T. (1978). Labor in the twentieth century. ELSEVIER.
芝加哥风格引文Dunlop, John T. Labor in the Twentieth Century. ELSEVIER, 1978.
MLA引文Dunlop, John T. Labor in the Twentieth Century. ELSEVIER, 1978.
警告：这些引文格式不一定是100％准确.
APA引文