Tivy, Joy.  O'Hare, Greg. <br/><br/>
Human impact on the ecosystem  x 

 - x 
 - Edinburgh; New York  Oliver & Boyd  1981 
 - 243p 
<br/><br/>Includes 
<br/><br/><label>ISBN: </label>0050032038 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biogeography Human ecology 
<br/><br/><label>Dewey Class. No.: </label>574.5223/T623h