Kaufman, Bob,  1946- <br/><br/>
Cost-effective telecommunications management :  turning telephone costs into profits / 
Bob Kaufman. 
 - Boston, Mass. :  CBI Publishing,  c1983. 
 - xii, 288 σ. :  εικ. ;  24 εκ. 
<br/><br/>Ευρετήριο: σ. 283-288. 
<br/><br/><label>ISBN: </label>0843616091 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Τηλέφωνο στην επιχείρηση.<br/>Telephone in business.
<br/><br/><label>Dewey Class. No.: </label>658.1553