DRDO science spectrum 2014:   A compilation of national science day orations  
/ Defence Research & Development Organisation  
 - Delhi:   Defence Research & Development Organisation,   2014 
 - v, 285p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science 
<br/><br/><label>Universal Decimal Class. No.: </label>5/6   / Q4