Urban air pollution :  with particular reference to motor vehicles : report 

 - Geneva :  World Health Organization,  1969. 
 - p.:  ill. ;  24cm. 
 - World Health Organization Technical Report Series ;  no.410 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air--Pollution.<br/>Air--Pollution--Measurement
<br/><br/><label>Dewey Class. No.: </label>616.9