Tschohl, J. (2003). e-Service: Speed, technology and price built around service. Pentagon.
Chicago-стиль цитированияTschohl, John. E-Service: Speed, Technology and Price Built Around Service. New Delhi: Pentagon, 2003.
MLA-цитированиеTschohl, John. E-Service: Speed, Technology and Price Built Around Service. Pentagon, 2003.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.