UNITED SATATES. <br/><br/>
Environmental planning and geology. 

 - ed. 
 - U.S.A :  Government printing,  1990. 
 - 204  p. :  ill ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>environment.