http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Quaternary geologic map of the Lake Superior 4⁰ x 6⁰ quadrangle, United States and Canada
Lake Superior 4⁰ x 6⁰ quadrangle, United States and Canada, quaternary geologic map
1 electronic map : HTML, digital, PDF file.
state and province compilations by William S. Farrand [and others] ; edited and integrated by Gerald M. Richmond and David S. Fullerton, 1984 ; prepared in cooperation with the Department of Geological Sciences, University of Michigan [and others].
Title from PDF title screen (viewed on Apr. 29, 2008).
Mode of access: internet from the USGS web site. Address as of 4/29/08: http://pubs.usgs.gov/imap/i-1420/nl-16/ ; current access via PURL.
Quaternary geologic atlas of the United States
Miscellaneous investigations series (Geological Survey (U.S.)) ; map I-1420 (NL-16)