Air pollution. / 
Contributors: K. Barker ... [et al.]. 
 - Geneva,  1961. 
 - Monograph series (World Health Organization) ;  no. 46 .
 - World Health Organization. Monograph series ;  no. 46 .
 - Monograph series (World Health Organization) ;  no. 46 .
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air -- Pollution.--Air -- Pollution.