APA-referens (7:e uppl.)

Buttle, F. (2004). Customer Relationship Management. Elesvier.

Chicago-referens (17:e uppl.)

Buttle, Francis. Customer Relationship Management. New Delhi: Elesvier, 2004.

MLA-referens (9:e uppl.)

Buttle, Francis. Customer Relationship Management. Elesvier, 2004.