Não informado. (1944). Illinois business review. University of Illinois, Bureau of Economic and Business Research.
Chicagoスタイル(17版)引用形式Não informado. Illinois Business Review. Urbana, Ill: University of Illinois, Bureau of Economic and Business Research, 1944.
MLA(8版)引用形式Não informado. Illinois Business Review. University of Illinois, Bureau of Economic and Business Research, 1944.
警告: この引用は必ずしも正確ではありません.