http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
glacial boundary in western Pennsylvania, Ohio, Kentucky, Indiana, and Illinois
1 online resource (112 pages, VIII pages of plates) : illustrations, maps.
by George Frederick Wright, with an introduction by Thomas Chrowder Chamberlin.
Title from title screen (viewed June 23, 2014).
Includes bibliographical references and index.
Bulletin of the United States Geological Survey ; no. 58