Townsend, A, A, R. <br/><br/>
Digital Line-of-sight Radio Links: A Handbook 

 - New York  Prentice Hall  1988 
 - 24X18 
<br/><br/><label>ISBN: </label>0132126222 
<br/><br/><label>Dewey Class. No.: </label>621.382 T748