Studies of ground-water movement 

 - Denver, Colo. :  The Bureau,  1960 
 - 180 p.  ; gráfs. 
 - Technical memornadum  ; 657 .
 - Technical memornadum  ; 657 .
<br/><br/><label>LCCN: </label>39595 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agua subterranea.
<br/><br/><label>Dewey Class. No.: </label>629.1  / E8