Richter, I. (1973). Political purpose in trade unions. Allen & Unwin.
芝加哥风格引文Richter, Irving. Political Purpose in Trade Unions. London: Allen & Unwin, 1973.
MLA引文Richter, Irving. Political Purpose in Trade Unions. Allen & Unwin, 1973.
警告：这些引文格式不一定是100％准确.