APA
Karr R. &. B. D., . (1998). The complete IDIOT's Guide to : great customer service. Prentice-Hall of India, New Delhi: .
Chicago
Karr Ron & Blohowiak Don, . 1998. The complete IDIOT's Guide to : great customer service. Prentice-Hall of India, New Delhi: .
Harvard
Karr R. &. B. D., . (1998). The complete IDIOT's Guide to : great customer service. Prentice-Hall of India, New Delhi: .
MLA
Karr Ron & Blohowiak Don, . The complete IDIOT's Guide to : great customer service. Prentice-Hall of India, New Delhi: . 1998.