Não informado. (2002). Business History Review. Harvard University, Graduate School of Business Administration.
Lua i Stíl Chicago (17ú heag.)Não informado. Business History Review. Boston, Mass: Harvard University, Graduate School of Business Administration, 2002.
Lua MLA (8ú heag.)Não informado. Business History Review. Harvard University, Graduate School of Business Administration, 2002.
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