Iowa.

Bibliographic Details
Corporate Author: Geological Survey (U.S.)
Format: Government Document eBook
Language:English
Published: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [1999]
Series:Fact sheet (Geological Survey (U.S.)) ; FS-99-016.
Subjects:
Online Access:https://purl.fdlp.gov/GPO/LPS53465
Description
Item Description:Title from PDF title screen (viewed on Sept. 01, 2004).
Title from PDF title screen (viewed Sept. 8, 2008).
"June 1999."
Electronic resource.
Physical Description:4 unnumbered pages : digital, PDF file.
Format:Mode of access: Internet from the GPO Permanent Archive. Address as of 9/8/08: http://permanent.access.gpo.gov/waterusgsgov/water.usgs.gov/pubs/fs/FS-016-99/pdf/fs-016-99.pdf ; current access is available via PURL.