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

 - 2nd  
 - Mumbai  Lata publications  2001 
 - 126p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Decca<br/>Echo sounder<br/>Doppler log<br/>Gyro compass
<br/><br/><label>Dewey Class. No.: </label>623.893  / BHA