LEFTWICH, R. H. (1969). Introduction to economic thinking. Holt.
Chicagoスタイル(17版)引用形式LEFTWICH, Richard H. Introduction to Economic Thinking. New York: Holt, 1969.
MLA(9版)引用形式LEFTWICH, Richard H. Introduction to Economic Thinking. Holt, 1969.
警告: この引用は必ずしも正確ではありません.