APA (7th ed.) Zitazioa
Timmons, J. A., & Spinelli, S. (2009). New venture creation: Entrepreneurship (8th ed.). McGraw Hill.
Chicago Style (17th ed.) Zitazioa
Timmons, Jeffrey A., eta Stephen Spinelli. New Venture Creation: Entrepreneurship. 8th ed. Boston: McGraw Hill, 2009.
MLA (9th ed.) Zitazioa
Timmons, Jeffrey A., eta Stephen Spinelli. New Venture Creation: Entrepreneurship. 8th ed. McGraw Hill, 2009.
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