Hyman, S. (1975). The Aspen idea. University of Oklahoma Press.
芝加哥风格引文Hyman, Sidney. The Aspen Idea. Norman, Oklahoma: University of Oklahoma Press, 1975.
MLA引文Hyman, Sidney. The Aspen Idea. University of Oklahoma Press, 1975.
警告：这些引文格式不一定是100％准确.