Zinc-lead-copper resources and general geology of the upper Mississippi Valley district /

Bibliographic Details
Main Author:	Heyl, Allen V. (Allen Van), 1918-2008 (Author)
Corporate Authors:	Wisconsin Geological and Natural History Survey (sponsoring body.), Iowa Geological Survey (sponsoring body.), Illinois State Geological Survey (sponsoring body.)
Format:	Government Document eBook
Language:	English
Published:	[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1955.
Series:	Contributions to economic geology. Geological Survey bulletin ; 1015-G.
Subjects:	Geology > Mississippi River Valley. Zinc mines and mining > Mississippi River Valley. Lead mines and mining > Mississippi River Valley. Copper mines and mining > Mississippi River Valley. Copper mines and mining. Geology. Lead mines and mining. Zinc mines and mining. Mississippi River Valley.
Online Access:	https://purl.fdlp.gov/GPO/gpo62517

Description
Item Description:	Title from title screen (viewed July 21, 2014). "Prepared in cooperation with the Wisconsin Geological and Natural History Survey, the Illinois State Geological Survey, and the Iowa Geological Survey."
Physical Description:	1 online resource (iii, 227-245 pages, 1 page of plate) : illustrations, maps, charts.
Format:	Master and use copy. Digital master created according to Technical Guidelines for Digitizing Archival Materials for Electronic Access. U.S. National Archives and Records Administration, 2004.
Bibliography:	Includes bibliographical references (pages 242-243) and index.