Mathur, R.C. <br/><br/>
Source book of science projects : an activity based book 
/ by  R.C. Mathur 
 - 2nd ed. 
 - New Delhi :  Arya Book Depot,  1991 
 - 270p.; 22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>507.8  / MA-SO