Letter from the secretary of the Army 

 - Washington :  United States Government Printing Office,  1968 
 - Various pagings :  graphs ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-supply
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Water resources development
<br/><br/><label>Dewey Class. No.: </label>333.91