Gitman, L. J. (2006). The future of business: The essentials. Thomson Publisher.
Lua i Stíl Chicago (17ú heag.)Gitman, Lawrence J. The Future of Business: The Essentials. Australia: Thomson Publisher, 2006.
Lua MLA (9ú heag.)Gitman, Lawrence J. The Future of Business: The Essentials. Thomson Publisher, 2006.
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