The activities of Unesco in science and technology. 

 - [Paris,  1964] 
 - Unesco. Information manuals .
 - Unesco. Information manuals  Unesco. Information manuals .
<br/><br/><label>LCCN: </label>65031616 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science.<br/>Technology.