Elsom Derek <br/><br/>
Smog alert    Managing urban air quality    

 - London  Earthscan Publications U. K.         1996 
 - xiii, 226p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Urban Geography
<br/><br/><label>Dewey Class. No.: </label>U43:(G:558), N6