Waud, R. N., & Norton, H. S. (1983). Economics (2nd ed.). Harper & Row.
芝加哥风格引文Waud, Roger N., 与 Hugh Stanton Norton. Economics. 2nd ed. New York: Harper & Row, 1983.
MLA引文Waud, Roger N., 与 Hugh Stanton Norton. Economics. 2nd ed. Harper & Row, 1983.
警告：这些引文格式不一定是100％准确.