Grant, August E. (editor) <br/><br/>
Communication technology update 

 - 9th ed. 
 - London :  Elsevier,  2004. 
 - vii,372p. :  ill. ; 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0240806409 
<br/><br/><label>LC Class. No.: </label>HD30.2  / .C73 2004