Owen, Oliver S.,  <br/><br/>
Natural resource conservation 

 - xvii, 586 pages :   illustrations ;   29 cm 
<br/><br/><label>ISBN: </label>0023901217 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservation of natural resources
<br/><br/><label>Dewey Class. No.: </label>333.72