"VYJANTHIMALA , BALAKRISHNA" <br/><br/>
NEW EXPLORING SCIENCE 1 

 - KARACHI  AMEENA SAIYID  2004 
 - 274 
<br/><br/><label>ISBN: </label>0195797183 
<br/><br/><label>Dewey Class. No.: </label>500  / 1179