00261nam a2200109Ia 450000500170000008000180001724500240003526000260005930000290008558300180011465000190013220260716043646.0  a18.01.01 U588  aUNESCO : why the S?  bUNESCOaParisFRc1985  a63 p. : ill. (some col.)  c2/24/06kJOYD  aSCIENCE POLICY