Caffrey, J. (2014). The joy of sales: How to win with door-to-door maketing. [Mint Associates Ltd./eBookPartnership.com].
Chicago-Zitierstil (17. Ausg.)Caffrey, John. The Joy of Sales: How to Win with Door-to-door Maketing. [Seaford, England?]: [Mint Associates Ltd./eBookPartnership.com], 2014.
MLA-Zitierstil (9. Ausg.)Caffrey, John. The Joy of Sales: How to Win with Door-to-door Maketing. [Mint Associates Ltd./eBookPartnership.com], 2014.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.