World Health Organization <br/><br/>
Air quality guidelines for Europe 

 - Copenhagen  World Health Organization  1987 
 - 426p 
<br/><br/>World Health Organization: Air quality guidelines for Europe.  Copenhagen.  World Health Organization, 1987. 92-890-1114-9--(616.98WOR)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>92-890-1114-9 
<br/><br/><label>Dewey Class. No.: </label>616.98  / WHO