Experiments in science  Volume 1 

 - New Delhi  Learners Press  1999 
 - 315  Pb 
<br/><br/><label>ISBN: </label>81-7181-470-0 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>500