Urban air pollution with particular reference to motor vehicles : report of a WHO Expert committee [meeting held in Geneva from 2 to 8 July 1968]. 

 - 53p. 
 - (WHO technical report series ; 410) .
<br/><br/><label>ISBN: </label>92-4-120410-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air pollution<br/>Vehicle emissions--Analysis<br/>Urban health