Barringer Bruce R. & Ireland Duane R. (2016). Entrepreneurship: Successfully Launching New Ventures (4th.). Pearson.
Lua i Stíl Chicago (17ú heag.)Barringer Bruce R. agus Ireland Duane R. Entrepreneurship: Successfully Launching New Ventures. 4th. Noida: Pearson, 2016.
Lua MLA (9ú heag.)Barringer Bruce R. agus Ireland Duane R. Entrepreneurship: Successfully Launching New Ventures. 4th. Pearson, 2016.
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