2nd annual intl. pollution engineering congress, Philadelphi <br/><br/>
Pollution engineering techniques  An overview introduction to the problem 

 - Michigan  ann arbor science  1974 
 - 227p. 
<br/><br/><label>ISBN: </label>025040057X 
<br/><br/><label>Dewey Class. No.: </label>628.168  / N74