Anderson, D. (2007). How to deal with difficult customers: 10 simple strategies for selling to the stubborn, obnoxious, and belligerent. Hoboken, N.J: Wiley.
استشهاد بنمط شيكاغوAnderson, Dave. How to Deal With Difficult Customers: 10 Simple Strategies for Selling to the Stubborn, Obnoxious, and Belligerent. Hoboken, N.J: Wiley, 2007.
MLA استشهادAnderson, Dave. How to Deal With Difficult Customers: 10 Simple Strategies for Selling to the Stubborn, Obnoxious, and Belligerent. Hoboken, N.J: Wiley, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.