Blake Roy <br/><br/>
Electronic communication systems. 

 - 2 
 -  2002 
 - xx,985p,  cm. 
<br/><br/><label>Standard No.: </label>91347 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>D65,4, P2