http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Index to geologic mapping in the United States, State of West Virginia
compiled by Leona Boardman and Elaine Watson ; Department of the Interior, United States Geological Survey.
Includes text and "Key to index map" (bibliography of 59 maps) in margin.