Umarkutti, A N P <br/><br/>
समुंद्र विज्ञान 
 Samundra vigyaan 

 - Delhi:     National Book Trust,      2001 
 - 131p. 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Universal Decimal Class. No.: </label>551.46  / P3