Ciriacy-Wantrup, Siegfried von <br/><br/>
Resource conservation  economics and policies 
by S.V. Ciriacy-Wantrup. 
 - Berkerly  University of California Press  1952. 
 - 395 p. 
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural resources--U.S.