Allen, Shirley Walter <br/><br/>
Conserving natural resources 

 - New York  McGraw-HIll    1959 
 - ix, 370 
<br/><br/>Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  Economics<br/>  Natural resources management
<br/><br/><label>Dewey Class. No.: </label>330.1  / A425c