Sobel, R. S. (2009). Understanding microeconomics (International student ed.). Thomson/South-Western.
Chicagoスタイル(17版)引用形式Sobel, Russell S. Understanding Microeconomics. International student ed. Australia: Thomson/South-Western, 2009.
MLA(9版)引用形式Sobel, Russell S. Understanding Microeconomics. International student ed. Thomson/South-Western, 2009.
警告: この引用は必ずしも正確ではありません.