Não informado. (1953). Business topics. Michigan State University, Bureau of Business and Economic Research.
Chicago-Zitierstil (17. Ausg.)Não informado. Business Topics. East Lansing, Mich: Michigan State University, Bureau of Business and Economic Research, 1953.
MLA-Zitierstil (8. Ausg.)Não informado. Business Topics. Michigan State University, Bureau of Business and Economic Research, 1953.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.