Não informado. (1953). Business topics. Michigan State University, Bureau of Business and Economic Research.
Citação do estilo Chicago (17ª ed.)Não informado. Business Topics. East Lansing, Mich: Michigan State University, Bureau of Business and Economic Research, 1953.
Citação MLA (8ª ed.)Não informado. Business Topics. Michigan State University, Bureau of Business and Economic Research, 1953.
警告：这些引文格式不一定是100％准确.