Description of data files compiled for the Central Midwest Regional Aquifer-System Analysis [microform] / by John O. Helgesen and Cristi V. Hansen.

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Bibliographic Details
Main Author:	Helgesen, John O.
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Hansen, Cristi V.
Format:	Government Document Microfilm Book
Language:	English
Published:	Denver, Colo. : Dept. of the Interior, U.S. Geological Survey : Books and Open-File Reports [distributor], 1989.
Series:	U.S. Geological Survey open-file report ; 89-42.
Subjects:	Groundwater > Middle West. Hydrology > Middle West. Aquifers > Middle West.

Norlin Library - Government Information - Microform

Holdings details from Norlin Library - Government Information - Microform
Call Number:	I 19.76:89-42
I 19.76:89-42	Restricted Place a Hold