APA aipamena

Crawford, C. M. (1997). New products management (5th ed.). Irwin.

Chicago Style aipamena

Crawford, C. Merle. New Products Management. 5th ed. Chicago: Irwin, 1997.

MLA aipamena

Crawford, C. Merle. New Products Management. 5th ed. Irwin, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.