APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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