"VYJTHIMALA , BALAKRISHNA" <br/><br/>
EXPLORING SCIENCE 2 

 - KARACHI  AMEENA SAIYID  2004 
 - 314 
<br/><br/><label>ISBN: </label>9780195797190 
<br/><br/><label>Dewey Class. No.: </label>500  / 03300353