Swain, Donald C. <br/><br/>
Federal conservation policy,1921-1933 / 
Donald C. Swain 
 - Berkeley :  University of California Press,  c1963 
 - 221 p. :  ports. ;  26 cm. 
 - University of California publications in history ;  v. 76 .
 - University of California, Berkeley.  University of California publications in history ;  76. .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label> USD 4.00 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural resources--United States
<br/><br/><label>Dewey Class. No.: </label>333.720973