APA
Barnes J. G., . (2001). Secrets of customer relationship management : it's all about how you make them feel. New York, N.Y: McGraw-Hill.
Chicago
Barnes James G, . 2001. Secrets of customer relationship management : it's all about how you make them feel. New York, N.Y: McGraw-Hill.
Harvard
Barnes J. G., . (2001). Secrets of customer relationship management : it's all about how you make them feel. New York, N.Y: McGraw-Hill.
MLA
Barnes James G, . Secrets of customer relationship management : it's all about how you make them feel. New York, N.Y: McGraw-Hill. 2001.