Main, R. S. (1981). Elements of microeconomics (2nd ed.). West Pub. Co..
芝加哥风格引文Main, Robert S. Elements of Microeconomics. 2nd ed. St. Paul: West Pub. Co., 1981.
MLA引文Main, Robert S. Elements of Microeconomics. 2nd ed. West Pub. Co., 1981.
警告：这些引文格式不一定是100％准确.