Knapp Brian and others <br/><br/>
Challenge of the natural environment 
Knapp Brian and others 
 - Harlow  Longman            1989 
 - 272p.  cm. 
 - Longman advanced geogrpahy .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography- Environment
<br/><br/><label>Dewey Class. No.: </label>U:(G:55), M9