Pigues D Keith. (2010). Winning with Customers. John Wiley and Sons.
Chicago Style (17. basım) AtıfPigues D Keith. Winning with Customers. New Jersey: John Wiley and Sons, 2010.
MLA (9th ed.) AtıfPigues D Keith. Winning with Customers. John Wiley and Sons, 2010.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..