Unesco <br/><br/>
Unesco source book for science teaching  : 

 - 20th 
 - Paris  : Unesco,   1968 
 - 250 p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Curriculum <br/>| Plant - Study and Teaching <br/>| Animal - Study and Teaching<br/>| Astronomy <br/>| Electricity <br/>| Science - Study and Teaching
<br/><br/><label>Dewey Class. No.: </label>375.5 Un3U