00396nam a22001577a 450000500170000001000150001702000240003203500140005603700090007008200130007924500630009226000490015527000120020430000190021670000030023520260708160732.0  aENG-149032  a9291691186c1000.00  aEN-132564  bDBAD  a551.621  aSafeguarding the Ozone Layer and the Global Climate System  aNairobibUnited Nation Environment Programme  bNairobi  a88p.c28cm(Pb)