Buttle, F. (2009). Customer relationship management: Concepts and technologies (2nd ed.). Routledge.
Chicago Edition CitationButtle, Francis. Customer Relationship Management: Concepts and Technologies. 2nd ed. New York: Routledge, 2009.
Cita MLAButtle, Francis. Customer Relationship Management: Concepts and Technologies. 2nd ed. Routledge, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.