Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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