Wonnacott, P., & Wonnacott, R. J. (1990). Economics (4th.ed.). John Wiley & sons.
Chicagoスタイル(17版)引用形式Wonnacott, Paul, , Ronald J. Wonnacott. Economics. 4th.ed. New York: John Wiley & sons, 1990.
MLA(9版)引用形式Wonnacott, Paul, , Ronald J. Wonnacott. Economics. 4th.ed. John Wiley & sons, 1990.
警告: この引用は必ずしも正確ではありません.