International encyclopaedia of science and technology education:  popularization of science and technology education / 
Digumarti Bhaskara Rao. 
 - New Delhi :  Discovery,  2000 
 - 334 p.(v 7):   ill.;   23 cm. 
<br/><br/><label>ISBN: </label>8171415482 (set) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science education
<br/><br/><label>Universal Decimal Class. No.: </label>370.1303