NCERT <br/><br/>
BHOUTIK BHUGOL KE MUL SIDHANT : KAKSHA 11 KE LIYE PATHYPUSTAK. 

 - 1st rep. ed.  2006 
 - NEW DELHI  NCERT 
 - 153 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  HIGHER STUDIES
<br/><br/><label>Dewey Class. No.: </label>813  / NCE