Metcalf William James <br/><br/>
Environmental crisis   A systems approach    
Metcalf William James 
 - New York  Martin's Press U S A       1977 
 - 150p. Bib p.135-44  cm. 
<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):(B), L7