Copeman, G. H. (1959). The role of the managing director. Business Pub.
芝加哥风格引文Copeman, George Henry. The Role of the Managing Director. London: Business Pub, 1959.
MLA引文Copeman, George Henry. The Role of the Managing Director. Business Pub, 1959.
警告：这些引文格式不一定是100％准确.