http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Oil and gas wells drilled in southwestern Virginia before 1950
Department of Conservation and Development,
1 online resource (iii, 501-573 pages) : illustrations, map, charts.
by J.W. Huddle, Eloise T. Jacobsen, and A.D. Williamson.
Title from title screen (viewed July 22, 2014).
"Prepared cooperatively by the United States Geological Survey and the Division of Geology, Virginia Department of Conservation and Development."
Includes bibliographical references (pages 568-572) and index.