Nathan C, Grover -  Baldwin, G. C. -  Parker, G. L. -  Henshaw, F. F. <br/><br/>
Surface water supply of the united states 1918 

 - Washington  Government Printing Office  1922 
 - 171 p. 
<br/><br/> Impreso 
<br/><br/><br/>Ingles 
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