Plummer, A. (1938). International combines in modern industry (2nd. ed.). Pitman & Sons.
芝加哥风格引文Plummer, Alfred. International Combines in Modern Industry. 2nd. ed. London: Pitman & Sons, 1938.
MLA引文Plummer, Alfred. International Combines in Modern Industry. 2nd. ed. Pitman & Sons, 1938.
警告：这些引文格式不一定是100％准确.