Ruffin, R., & Gregory, P. R. (2000). Principles of microeconomics (7th ed.). Addison-Wesley.
Chicagoスタイル(17版)引用形式Ruffin, Roy, , Paul R. Gregory. Principles of Microeconomics. 7th ed. Reading, Mass: Addison-Wesley, 2000.
MLA(9版)引用形式Ruffin, Roy, , Paul R. Gregory. Principles of Microeconomics. 7th ed. Addison-Wesley, 2000.
警告: この引用は必ずしも正確ではありません.