Sheth Jagdish & Others. (2000). Customer relationship management. TMH.
Chicago Style aipamenaSheth Jagdish & Others. Customer Relationship Management. Delhi: TMH, 2000.
MLA aipamenaSheth Jagdish & Others. Customer Relationship Management. TMH, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.