Não informado. (1967). MSU business topics. Michigan State University, Bureau of Business and Economic Research.
Chicagoスタイル(17版)引用形式Não informado. MSU Business Topics. East Lansing, Mich: Michigan State University, Bureau of Business and Economic Research, 1967.
MLA(8版)引用形式Não informado. MSU Business Topics. Michigan State University, Bureau of Business and Economic Research, 1967.
警告: この引用は必ずしも正確ではありません.