Debelak, D. (1997). Entrepreneur Magazine: Bringing your product to market. John Wiley & sons.
Chicago Style aipamenaDebelak, Don. Entrepreneur Magazine: Bringing Your Product to Market. New York: John Wiley & sons, 1997.
MLA aipamenaDebelak, Don. Entrepreneur Magazine: Bringing Your Product to Market. John Wiley & sons, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.