Baran, R. J. (2008). Principles of customer relationship management (Student ed.). Thompson/South-Western.
Chicago Style aipamenaBaran, Roger J. Principles of Customer Relationship Management. Student ed. Mason, Ohio: Thompson/South-Western, 2008.
MLA aipamenaBaran, Roger J. Principles of Customer Relationship Management. Student ed. Thompson/South-Western, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.