Zimmerer, T. W. (2005). Essentials of entrepreneurship and small business managementThomas W. Zimmerer and Norman M. Scarborough. Pearson Education International.
Lua i Stíl Chicago (17ú heag.)Zimmerer, Thomas W. Essentials of Entrepreneurship and Small Business ManagementThomas W. Zimmerer and Norman M. Scarborough. Pearson Education International, 2005.
Lua MLA (8ú heag.)Zimmerer, Thomas W. Essentials of Entrepreneurship and Small Business ManagementThomas W. Zimmerer and Norman M. Scarborough. Pearson Education International, 2005.
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