Ciriacy-Wantrup, Sigfrid Von. <br/><br/>
Natural resources  : quality and quantity. Papers presented before a Faculty seminar at the University of California, Berkeley, 1961-1965 

 - Berkeley :  Univ. of California,  1967 
 - 217 p.  : láms. 
<br/><br/><label>LCCN: </label>21269 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Recursos naturales--Conservación.
<br/><br/><label>Dewey Class. No.: </label>333.72  / C5