Hely, Allen G.  1908-1991 <br/><br/>
Lower Colorado river water supply- its magnitude and distribution / 
by Allen G. Hely. 
 -- Washington :   United States Government Printing Office,   1969 
 - 54 p. -- 
 (Geological Survey Professional Paper  ;  486-D).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Colorado<br/>Ríos
<br/><br/><label>Universal Decimal Class. No.: </label>556.53(788)