Martin,James <br/><br/>
Telecommunication and the Computer 

 - 3rd 
 - Addison-Weslg Publishing Company,U.S.A.  Addison-Weslg Publishing Company,U.S.A.  1994 
 - 720p. 
<br/><br/><label>Dewey Class. No.: </label>384/M373t