Swearingen, R. (1971). Leaders of the communist world. Free Press.
芝加哥风格引文Swearingen, Rodger. Leaders of the Communist World. New York: Free Press, 1971.
MLA引文Swearingen, Rodger. Leaders of the Communist World. Free Press, 1971.
警告：这些引文格式不一定是100％准确.