Hisrich, R. (2002). Enterpreneurship- 5th ed (5th.).
Chicago Style aipamenaHisrich, Robert. Enterpreneurship- 5th Ed. 5th. New Delhi, 2002.
MLA aipamenaHisrich, Robert. Enterpreneurship- 5th Ed. 5th. 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.