Gureja, G. (1997). Creating customer values: The synergy between after sales service and maintenance. TMH.
Chicago-referens (17:e uppl.)Gureja, Gopal. Creating Customer Values: The Synergy Between After Sales Service and Maintenance. New Delhi: TMH, 1997.
MLA-referens (9:e uppl.)Gureja, Gopal. Creating Customer Values: The Synergy Between After Sales Service and Maintenance. TMH, 1997.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.