APA-viite (7. p.)
Buttle, F., & Maklan, S. (2022). Customer relationship management: Concepts and technologies (4th ed.). Routledge.
Chicago-viite (17. p.)
Buttle, Francis, ja Stan Maklan. Customer Relationship Management: Concepts and Technologies. 4th ed. New York: Routledge, 2022.
MLA-viite (9. p.)
Buttle, Francis, ja Stan Maklan. Customer Relationship Management: Concepts and Technologies. 4th ed. Routledge, 2022.
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