Purohit, N.J.  . <br/><br/>
Earth science geology: environment and the universe /  
by N.J. Purohit. 
 - New Delhi :   Swastik Publications ,   2014 
 - 280 p. :  
<br/><br/><label>ISBN: </label>978-93-81991-26-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology- Environment and universe
<br/><br/><label>Dewey Class. No.: </label>H  / Q4