Bhatia, A. G. <br/><br/>
Modern electronic navigation aids 

 - 6th 
 - Mumbai  Lata publications  2003 
 - 180p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Global positioning systems<br/>Echo sounder<br/>Doppler log
<br/><br/><label>Dewey Class. No.: </label>623.893  / BHA