Dahl, R. A. (1956). A preface to democratic theory. University of Chicago Press.
芝加哥风格引文Dahl, Robert Alan. A Preface to Democratic Theory. [Chicago]: University of Chicago Press, 1956.
MLA引文Dahl, Robert Alan. A Preface to Democratic Theory. University of Chicago Press, 1956.
警告：这些引文格式不一定是100％准确.