Gaya APA

V. Kumar, ., Werner Reinartz, . (2006). Customer Relationship Management: Concept, Strategy, and Tools (3). New York: John Wiley & Sons, Inc.,.

Gaya MLA

V. Kumar, ., Werner Reinartz, . "Customer Relationship Management: Concept, Strategy, and Tools". 3 New York: John Wiley & Sons, Inc.,, 2006. eBook.