Hennessy, David E. <br/><br/>
Elementary teacher's classroom science demonstrations and activities/ 
by David E. Hennessy ; edited by Elaine V. Walworth 
 - New Delhi :  Prentice-Hall,  1966 
 - vii, 308 p.:  ill.;  26 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> Rs. 7.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Experiments
<br/><br/><label>Dewey Class. No.: </label>372.3