Mathur, S.M.  <br/><br/>
Elements of geology 

 - Delhi  PHI Learning  2010 
 - x, 153p.  24x15cm. 
<br/><br/><label>ISBN: </label>9788120335158  150 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology l  Natural gas l Geology Natural gas l Geology Petroleum l Geology Olja (petroleum) l Geology
<br/><br/><label>Dewey Class. No.: </label>551  / MAT/ELE