Byrns, R. T., & Stone, G. W. (1989). Economics (4th ed.). Scott, Foresman.
芝加哥风格引文Byrns, Ralph T., 与 Gerald W. Stone. Economics. 4th ed. Glenview, Ill.: Scott, Foresman, 1989.
MLA引文Byrns, Ralph T., 与 Gerald W. Stone. Economics. 4th ed. Scott, Foresman, 1989.
警告：这些引文格式不一定是100％准确.