National resources policy :  hearings, 81st Congress, 1st session, Jan. 31-Feb. 7, 1949. 

 - [Washington, D.C.],  1949. 
 - iii, 470 p. :  ill., 31 pl., 3 maps. 
<br/><br/> CRDP Program Historic Shelflist record. 
<br/><br/><label>Subjects--Corporate Names: </label><br/>United States. Department of the Interior. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural resources--United States.
<br/><br/><label>Gov. Doc. Class. No.: </label>Y 4.IN 8/13:R 31