Gregory, P. R., & Stuart, R. C. (1980). Comparative economic systems. Houghton Mifflin.
芝加哥风格引文Gregory, Paul R., 与 Robert C. Stuart. Comparative Economic Systems. Boston: Houghton Mifflin, 1980.
MLA引文Gregory, Paul R., 与 Robert C. Stuart. Comparative Economic Systems. Houghton Mifflin, 1980.
警告：这些引文格式不一定是100％准确.