Perspectives on conservation :  essays on America's natural resources / 
edited by Henry Jarrett. 
 - Baltimore :  Johns Hopkins University Press,  1958. 
 - xii, 260 pages ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural resources--United States.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--Natural resources.