Rai, B. C. <br/><br/>
Method teaching of science 

 - Lucknow  Prakashan Kendra  1977 
 - 161p. 
<br/><br/><label>ISBN: </label> RS 6.00 
<br/><br/><label>Source: </label> RS 6.00 
<br/><br/><label>Dewey Class. No.: </label>507 RAI