Byrns, R. T. (1981). Economics. Foresman.
Chicagoスタイル(17版)引用形式Byrns, Ralph T. Economics. Glenview: Foresman, 1981.
MLA(9版)引用形式Byrns, Ralph T. Economics. Foresman, 1981.
警告: この引用は必ずしも正確ではありません.
Byrns, R. T. (1981). Economics. Foresman.
Chicagoスタイル(17版)引用形式Byrns, Ralph T. Economics. Glenview: Foresman, 1981.
MLA(9版)引用形式Byrns, Ralph T. Economics. Foresman, 1981.