APA-viite (7. p.)
ebrary, Inc. (2006). Customer loyalty, retention, and customer relationship management. Emerald Group Publishing.
Chicago-viite (17. p.)
ebrary, Inc. Customer Loyalty, Retention, and Customer Relationship Management. Bradford, England: Emerald Group Publishing, 2006.
MLA-viite (9. p.)
ebrary, Inc. Customer Loyalty, Retention, and Customer Relationship Management. Emerald Group Publishing, 2006.
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