University of Illinois (Urbana-Champaign campus). Bureau of Economic and Business Research. (1930). A test analysis of unsuccessful industrial companies. University of Illinois.
Citação do estilo Chicago (17ª ed.)University of Illinois (Urbana-Champaign campus). Bureau of Economic and Business Research. A Test Analysis of Unsuccessful Industrial Companies. Urbana: University of Illinois, 1930.
Citação MLA (8ª ed.)University of Illinois (Urbana-Champaign campus). Bureau of Economic and Business Research. A Test Analysis of Unsuccessful Industrial Companies. University of Illinois, 1930.
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