Report of the fourth meeting of the ozone researchmanagers of the parties to the Vienna convention for the protection of the ozone laye :  Geneva, 28-30 april 1999 / 
Meeting of the... 
 - [s.l.] :  United Nations : World Meteorological Organization,   [1999?] 
 - [220] p.   :il. 
 - WMO Global Ozone Research and Monitoring Project. Report ;  45 .
<br/><br/> Summary 20, [Annex 7], Annex 167, Annex 18 
<br/><br/><label>ISBN: </label>92-807-1799-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PROTECCION DEL MEDIO AMBIENTE<br/>OZONO<br/>IMPACTO AMBIENTAL
<br/><br/><label>Dewey Class. No.: </label>333.72 M495r 1999