Loucks, W. N. (1961). Comparative economic systems (6th ed.). Harper.
芝加哥风格引文Loucks, William Negele. Comparative Economic Systems. 6th ed. New York: Harper, 1961.
MLA引文Loucks, William Negele. Comparative Economic Systems. 6th ed. Harper, 1961.
警告：这些引文格式不一定是100％准确.