United Nations <br/><br/>
New UNESCO course book for science teaching. 

 - 
 - New Delhi  Oxford & IBH  1973 
 - 270 p.   
<br/><br/>   
<br/><br/><label>ISBN: </label>
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Index Terms: </label>Pure sciences  Natural sciences  science teaching  Unesco 
<br/><br/><label>Dewey Class. No.: </label>5:37