Não informado. (1965). Business Economics. National Association of Business Economists.
Chicagoスタイル(17版)引用形式Não informado. Business Economics. Cleveland, Ohio: National Association of Business Economists, 1965.
MLA(8版)引用形式Não informado. Business Economics. National Association of Business Economists, 1965.
警告: この引用は必ずしも正確ではありません.