Gummesson E <br/><br/>
Total relationship marketing 
Gummesson E 
 - 2 
 - United Kingdom  United Kingdom, Butterworth-Heinemann  1999 
 - 306p 
<br/><br/><label>ISBN: </label>81-312-0673-4 
<br/><br/><label>Source: </label>Textbook