Não informado. (1967). MSU business topics. Michigan State University, Bureau of Business and Economic Research.
Chicago-Zitierstil (17. Ausg.)Não informado. MSU Business Topics. East Lansing, Mich: Michigan State University, Bureau of Business and Economic Research, 1967.
MLA-Zitierstil (8. Ausg.)Não informado. MSU Business Topics. Michigan State University, Bureau of Business and Economic Research, 1967.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.