"Ron Thomas and Jan Stutchbury; illustrated by Vincent Chu" <br/><br/>
Air pollution 

 - hong kong  South Melbourne : Macmillan Education Australia, 1992.  1999 
 - 30 
<br/><br/><label>ISBN: </label>0732905915 
<br/><br/><label>Dewey Class. No.: </label>304.2  / 1278