APA (7 वां संस्करण) प्रशस्ति पत्र

Buttle, F., & Maklan, S. (2019). Customer Relationship Management: Concepts And Technologies (4th.). Routledge.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Buttle, Francis, और Stan Maklan. Customer Relationship Management: Concepts And Technologies. 4th. New York: Routledge, 2019.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Buttle, Francis, और Stan Maklan. Customer Relationship Management: Concepts And Technologies. 4th. Routledge, 2019.