Cita APA (7a ed.)

Buttle, F. (2009). Customer Relationship Management (7th.). Tata McGraw Hill.

Cita Chicago Style (17a ed.)

Buttle, Francis. Customer Relationship Management. 7th. New Delhi: Tata McGraw Hill, 2009.

Cita MLA (9a ed.)

Buttle, Francis. Customer Relationship Management. 7th. Tata McGraw Hill, 2009.