Não informado. (2001). Studies in economics. University of Minnesota.
Chicagoスタイル(17版)引用形式Não informado. Studies in Economics. Minneapolis, Minn: University of Minnesota, 2001.
MLA(8版)引用形式Não informado. Studies in Economics. University of Minnesota, 2001.
警告: この引用は必ずしも正確ではありません.