Mehrotra, Narayan <br/><br/>
पृथ्वी की आयु | Prithvi ki Aayu 

 - 1  ed. 
 - Uttar Pradesh  Hindi Samiti  1962 
 - 284p.  ill. 
 - 60  vol. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography & travel
<br/><br/><label>Dewey Class. No.: </label>910  / M211P