Sonnenberg, Gerrit Jacobus. <br/><br/>
Radar and electronic navigation / 
G.J. Sonnenberg. 
 - 6th ed. 
 - London :  Butterworths,  1988. 
 - 368 p. :  ill. 
<br/><br/> Includes index. 
<br/><br/><label>LCCN: </label>92023044     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronics in navigation.