Zangar, Carl N. <br/><br/>
Theory and problems of water percolation 

 - Denver, Co. :  Bureau of Reclamation,  1957 
 - 76 p.  : ilus. ; gráfs. 
 - Engineering monograp  ; 8 .
 - Engineering monograp  ; 8 .
<br/><br/><label>LCCN: </label>56075 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Presas--Percolación.<br/>Suelos--Percolación.