Dury George <br/><br/>
Introduction to environmental systems 

 - London  Heinemann UK           1981 
 - 366p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical Geography
<br/><br/><label>Dewey Class. No.: </label>U2:(G:55), M1