Guell, R. C. (2015). Issues in economics today 7 ed. McGraw-Hill.
Chicagoスタイル(17版)引用形式Guell, Robert C. Issues in Economics Today 7 Ed. McGraw-Hill, 2015.
MLA(8版)引用形式Guell, Robert C. Issues in Economics Today 7 Ed. McGraw-Hill, 2015.
警告: この引用は必ずしも正確ではありません.