Martin W.B. (1989). Quality customer service: The art of Treating customers as guests (2.). Wuley interscience.
Цитирование в стиле Чикаго (17-е изд.)Martin W.B. Quality Customer Service: The Art of Treating Customers as Guests. 2. californina: Wuley interscience, 1989.
Цитирование MLA (8-е изд.)Martin W.B. Quality Customer Service: The Art of Treating Customers as Guests. 2. Wuley interscience, 1989.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.