Sonnenberg, C J <br/><br/>
Radar and electronic navigation 

 - 5th ed. 
 - London  Newnes-Butterworths  1978 
 - 376p.   
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<br/><br/><label>ISBN: </label>
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<br/><br/><label>Subjects--Index Terms: </label>Navigation  Nautical astronomy  Aeronautical astronomy 
<br/><br/><label>Dewey Class. No.: </label>527:621.396.96