Hydrologic data for a study of pre-Illinoian glacial till in Linn County, Iowa, water year 1991 /

Bibliographic Details
Main Author:	Bowman, Phillip R.
Corporate Authors:	Geological Survey (U.S.), Iowa. Department of Natural Resources. Geological Survey Bureau
Format:	Government Document Microform Book
Language:	English
Published:	Iowa City, Iowa : U.S. Dept. of the Interior, U.S. Geological Survey ; 1992.
Series:	U.S. Geological Survey open-file report ; 92-500.
Subjects:	Drift > Iowa > Linn County. Glacial epoch > Iowa > Linn County. Groundwater flow > Iowa > Linn County.

Description
Item Description:	Distributed to depository libraries in microfiche. Shipping list number: 93-1121-M. Microform.
Physical Description:	iv, 66 pages : illustrations ; 28 cm.
Bibliography:	Includes bibliographical references (page 22).