TY  - BOOK
AU  - Mandle,Richard J.
AU  - Kontis,A.L.
ED  - U.S. Geological Survey
TI  - Simulation of regional ground-water flow in the Cambrian-Ordovician aquifer system in the northern Midwest, United States
PY  - 1992///
CY  - Washington, Denver, CO
PB  - U.S. G.P.O., For sale by Book and Open-File Report Sales, U.S. Geological Survey
KW  - Groundwater flow
KW  - Middle West
KW  - Simulation methods
KW  - Aquifers
N1  - Includes bibliographical references (p. 95-97)
ER  -