Allen, Shirley Walter, 1883-  Allen, Shirley Walter, 1883- <br/><br/>
Conserving natural resources;  principles and practice in a democracy 
[by] Shirley Walter Allen [and] Justin Wilkinson Leonard. 
 - 3d ed. 
 - New York,  McGraw-Hill  [1966] 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>LCCN: </label>65028230 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservation of natural resources -- United States.--Conservation of natural resources -- United States.
<br/><br/><label>LC Class. No.: </label>HC103.7  / .A7 1966 
<br/><br/><label>Dewey Class. No.: </label>333.72