TY - BOOK AU - Luckey,Richard R TI - 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 U1 - 551.490978 PY - 1986/// CY - Washington, D.C. PB - U.S. Geological Survey KW - High Plains Aquifer KW - Data processing KW - Mathematical models N1 - Bibliography: p. 55-57 ER -