Παραπομπή σε μορφή APA (7η εκδ.)

Richardson, L. (1992). Selling by phone: How to reach and sell customers in the nineties. McGraw-Hill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Richardson, Linda. Selling by Phone: How to Reach and Sell Customers in the Nineties. New York: McGraw-Hill, 1992.

Παραπομπή σε μορφή MLA (9th εκδ.)

Richardson, Linda. Selling by Phone: How to Reach and Sell Customers in the Nineties. McGraw-Hill, 1992.