Summary of ground-water hydrology of the Cambrian-Ordovician aquifer system in the northern Midwest, United States
|Main Author:||Young, H. L.|
|Other Authors:||Geological Survey (U.S.)|
[Reston, Va.?] : Denver, CO :
U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by Book and Open-File Report Sales,
vi, 55 pages : illustrations (some color), maps (some color) ; 29 cm.
Regional aquifer-system analysis--northern Midwest.
U.S. Geological Survey professional paper ; 1405-A.