Townsend, A. A. R. <br/><br/>
Digital line-of-sight radio links  a handbook 
by A. A. R. Townsend. 
 - New York  Prentice-Hall  1988 
 - xvi, 656p 
<br/><br/><label>ISBN: </label>0132116222 
<br/><br/><label>Dewey Class. No.: </label>621.384165  / N88