Harb, M. (Mahmoud), 1953-  Harb, M. (Mahmoud), 1953- <br/><br/>
Modern telephony / 
M. Harb. 
 - Englewood Cliffs, NJ :  Prentice Hall,  c1989. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0135987725 
<br/><br/><label>LCCN: </label>88006028 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telephone.<br/>Telephone systems.
<br/><br/><label>LC Class. No.: </label>TK6162  / .H37 1989 
<br/><br/><label>Dewey Class. No.: </label>621.385