Proceedings... 

 - Brookings, South Dakota :  State College,  1962 
 - 320 p.  : ilus 
<br/><br/><label>LCCN: </label>26129 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agua--Conservación--Congresos.<br/>Suelos--Congresos.
<br/><br/><label>Dewey Class. No.: </label>631.4063  / I58 1962