Sonnenberg, G. J.  1903- <br/><br/>
Radar and electronic navigation / 
G.J. Sonnenberg. 
 - 6th ed. 
 - London :  Butterworths,  1988. 
 - 368p,2p of plates :  ill, charts ;  24cm 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0408011912 
<br/><br/><label>LCCN: </label>87014699 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronics in navigation.
<br/><br/><label>Dewey Class. No.: </label>623.893