Ciriacy-Wantrup, S. V.   1906-1980, <br/><br/>
Resource conservation :  economics and policies. 

 - 3rd ed. 
 - Agricultural Experiment Station :  Berkeley :  University of California Division of Agricultural Sciences,  1968. 
 - 395 p. ;  25 cm. 
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservation of natural resources.<br/>Natural resources--United States.