APA استشهاد

Dawson, K. (2001). call center handbook (4th ed.). CMP books.

استشهاد بنمط شيكاغو

Dawson, Keith. Call Center Handbook. 4th ed. New York: CMP books, 2001.

MLA استشهاد

Dawson, Keith. Call Center Handbook. 4th ed. CMP books, 2001.