Owen, Oliver S. <br/><br/>
Natural resources conservation : An ecological approach / 

 - New York:  MacMillan Publishing,  1971 
 - xii, 592 p.:  ill. ;  24cm. 
<br/><br/> Acc. No. 05703 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology<br/>Natural resources