Buttle, F. (2013). Customer relationship management: Concepts and technologies. Routledge.
Chicago ZitierstilButtle, Francis. Customer Relationship Management: Concepts and Technologies. London: Routledge, 2013.
MLA ZitierstilButtle, Francis. Customer Relationship Management: Concepts and Technologies. Routledge, 2013.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.