"Shankar,Kali" <br/><br/>
Brahmand aur telescope 

 - Delhi  Gyan Ganga  2012 
 - 181p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Global earth
<br/><br/><label>Dewey Class. No.: </label>H 384.55 SHA