Dyfyniad APA

Crawford, C. M. (1994). New products management (4th ed.). Irqwin.

Dyfyniad Arddull Chicago

Crawford, C. Merle. New Products Management. 4th ed. Sydney: Irqwin, 1994.

Dyfyniad MLA

Crawford, C. Merle. New Products Management. 4th ed. Irqwin, 1994.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.