Ashworth, William,  1942- <br/><br/>
Encyclopedia of environmental studies / 
William Ashworth and Charles E. Little ; Janice M. Fowler, research associate. 
 - New ed. 
 - New York :  Facts on File,  c2001. 
 - vii, 600 p. :  ill., maps ;  29 cm. 
<br/><br/>Includes bibliographical references (p. 549-564) and index. 
<br/><br/><label>ISBN: </label>0816042551 (alk. paper) 
<br/><br/><label>LCCN: </label>00051379  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental engineering--Encyclopedias.<br/>Environmental protection--Encyclopedias.<br/>Pollution--Encyclopedias.<br/>Ecology--Encyclopedias.
<br/><br/><label>LC Class. No.: </label>TD9  / .ASH 2001 
<br/><br/><label>Dewey Class. No.: </label>333.7/03