Digital simulation of ground-water flow in the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming :  regional aquifer-system analysis / 
by Richard R. Luckey ... [et. al.] 
 - Washington, D.C. :  U.S. Geological Survey,  1986. 
 - viii, 57 p. :  ill., maps (some col.) ;  29 cm. 
 - U.S. Geological survey professional paper ;  no.1400-D .
<br/><br/>Bibliography: p. 55-57. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>High Plains Aquifer--Data processing.<br/>High Plains Aquifer--Mathematical models.
<br/><br/><label>Dewey Class. No.: </label>551.490978