APA (7th ed.) Zitazioa
Crawford, C. M. (1997). New products management (5th ed.). Irwin Mc Graw Hill.
Chicago Style (17th ed.) Zitazioa
Crawford, C. Merle. New Products Management. 5th ed. Chicago: Irwin Mc Graw Hill, 1997.
MLA (9th ed.) Zitazioa
Crawford, C. Merle. New Products Management. 5th ed. Irwin Mc Graw Hill, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.