APA-Zitierstil (7. Ausg.)

Barnes, J. G. (2001). Secrets of customer relationship management: It's all about how you make them feel (1a. ed.). McGraw-Hill.

Chicago-Zitierstil (17. Ausg.)

Barnes, James G. Secrets of Customer Relationship Management: It's All About How You Make Them Feel. 1a. ed. Nueva York: McGraw-Hill, 2001.

MLA-Zitierstil (9. Ausg.)

Barnes, James G. Secrets of Customer Relationship Management: It's All About How You Make Them Feel. 1a. ed. McGraw-Hill, 2001.