Kaufman, R. (2012). Uplifting service: The proven path to delighting your customers, colleagues, and everyone else you meet (NA.). Evolve Publishing.
Цитирование в стиле Чикаго (17-е изд.)Kaufman, Ron. Uplifting Service: The Proven Path to Delighting Your Customers, Colleagues, and Everyone Else You Meet. NA. USA: Evolve Publishing, 2012.
Цитирование MLA (9-е изд.)Kaufman, Ron. Uplifting Service: The Proven Path to Delighting Your Customers, Colleagues, and Everyone Else You Meet. NA. Evolve Publishing, 2012.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.