Unesco's activities in science and technology in the European and North American region. 

 - Paris :  UNESCO,  c1979. 
 - 49 p. ; 
<br/><br/><label>ISBN: </label>9231017276 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research
<br/><br/><label>Dewey Class. No.: </label>507.2  / Un