Buttle, F., & Maklan, S. (2019). Customer Relationship Management: Concepts And Technologies (4th.). Routledge.
Čikaški stil citiranja (17. izdanje)Buttle, Francis, i Stan Maklan. Customer Relationship Management: Concepts And Technologies. 4th. New York: Routledge, 2019.
MLA način citiranja (9. izdanje)Buttle, Francis, i Stan Maklan. Customer Relationship Management: Concepts And Technologies. 4th. Routledge, 2019.
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