Hisrich, R. (2002). Enterpreneurship- 5th ed (5th.).
Lua i Stíl Chicago (17ú heag.)Hisrich, Robert. Enterpreneurship- 5th Ed. 5th. New Delhi, 2002.
Lua MLA (9ú heag.)Hisrich, Robert. Enterpreneurship- 5th Ed. 5th. 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.