Hanson, William John <br/><br/>
Pollution and conservation 
W.J. Hanson 
 - London  Longman  1977 
 - 46 p.  ill., maps  27cm 
 - Enquiries .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental policy--Great Britain<br/>Pollution--Great Britain
<br/><br/><label>Dewey Class. No.: </label>301.31