Nathan C. Grover -  Stevens, Guy C. -  Hall, Warren E. <br/><br/>
Surface water supply of the united states 1917 

 - Washington  Government Printing Office  1920 
 - 64 p. 
<br/><br/> Impreso 
<br/><br/><br/>Ingles 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINERIA