National Council of Educational Research and Training(NCERT) <br/><br/>
Rocks unfold the past 

 - New Delhi  National Council of Educational Research and Training(NCERT)  1973 
 - ix,59p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth Sciences (Geology) - Textbook - NCERT
<br/><br/><label>Dewey Class. No.: </label>552 NAT(TB)