Walker, Colin <br/><br/>
Environmental pollution by chemicals / 
Colin Walker 
 - 2nd revised ed. 
 - London :  Hutchinson,  1975 
<br/><br/>Includes index Bibliography : p.69 
<br/><br/><label>ISBN: </label>0091238919 
<br/><br/><label>LCCN: </label>75-596236 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution<br/>Chemicals<br/>Organics water pollutants<br/>Environmental pollution<br/>Environmental pollutants