Sharma O. P,  <br/><br/>
Encyclopedia of Chemistry:  (in 5 Vol.)/ 

 - Delhi  Lakshay Publication  2003 
 - 336 p.:  22 cm. 
<br/><br/><label>ISBN: </label>817879522 
<br/><br/><label>Dewey Class. No.: </label>540.3  / ENC 2003