Williams, H. R., & Peterson, W. C. (1992). Study guide: Peterson and Estenson's Income, employment, and economic growth (7th ed.). W.W. Norton.
Chicagoスタイル(17版)引用形式Williams, Harold R., , Wallace C. Peterson. Study Guide: Peterson and Estenson's Income, Employment, and Economic Growth. 7th ed. New York, London: W.W. Norton, 1992.
MLA(9版)引用形式Williams, Harold R., , Wallace C. Peterson. Study Guide: Peterson and Estenson's Income, Employment, and Economic Growth. 7th ed. W.W. Norton, 1992.
警告: この引用は必ずしも正確ではありません.