Fletcher, J. (1984). Information sources in economics (2nd ed.). Butterworths.
芝加哥风格引文Fletcher, John. Information Sources in Economics. 2nd ed. London ; Boston: Butterworths, 1984.
MLA引文Fletcher, John. Information Sources in Economics. 2nd ed. Butterworths, 1984.
警告：这些引文格式不一定是100％准确.