Owen, Oliver S. <br/><br/>
Natural resource conservation :  an ecological approach / 
Oliver S. Owen. 
 - 3rd ed. 
 - London :  Macmillan,  1980. 
 - 883 p. :  ill. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0023900202 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservation of natural resources.<br/>Ecology.<br/>Enviromental protection.
<br/><br/><label>LC Class. No.: </label>S938  / .O87