Cib study text/ 

 - 3th 
 - London:  "BPP,"  1992 
 - 405p. 
<br/><br/><label>ISBN: </label>0-86277-578-7 
<br/><br/><label>Subjects--Index Terms: </label>customer services 
<br/><br/><label>Dewey Class. No.: </label>658  / CIB