Owen, Oliver S.,  1920- <br/><br/>
Natural resource conservation :  an ecological approach / 
Oliver S. Owen, Daniel D. Chiras. 
 - 5th ed. 
 - New York :  London :  Macmillan ;  Collier Macmillan,  c1990. 
 - xiii, 538 p. :  ill. ;  29 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>002390111X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservation of natural resources.<br/>Ecology.<br/>Environmental protection.<br/>Conservation of natural resources--United States.<br/>Ecology--United States.<br/>Environmental protection--United States.
<br/><br/><label>LC Class. No.: </label>S938  / .O87 1990