Martin W.B. (1989). Quality customer service: The art of Treating customers as guests (2.). Wuley interscience.
Чикаго маягийн жагсаалтMartin W.B. Quality Customer Service: The Art of Treating Customers as Guests. 2. californina: Wuley interscience, 1989.
MLA ишлэлMartin W.B. Quality Customer Service: The Art of Treating Customers as Guests. 2. Wuley interscience, 1989.
Warning: These citations may not always be 100% accurate.