ebrary, Inc. (2005). Customer relationship management: An Emerald guide. Emerald Group Publishing.
Čikaški stil citiranja (17. izdanje)ebrary, Inc. Customer Relationship Management: An Emerald Guide. Bradford, England: Emerald Group Publishing, 2005.
MLA način citiranja (9. izdanje)ebrary, Inc. Customer Relationship Management: An Emerald Guide. Emerald Group Publishing, 2005.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.