Leftwich, R. H. (1982). Economics of social issues (5ª ed.). Business.
Chicagoスタイル(17版)引用形式Leftwich, Richard H. Economics of Social Issues. 5ª ed. Business, 1982.
MLA(9版)引用形式Leftwich, Richard H. Economics of Social Issues. 5ª ed. Business, 1982.
警告: この引用は必ずしも正確ではありません.