http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Oil and gas well drilling statistics for 1951. Part 1
Oil and gas well drilling statistics for 1951
compiled by Robert L. Alkire. Oriskany sand study. Part 2. Oriskany sand study, by John F. Hall. Clinton gas pool, by Henry Belden. Wells drilled in Ohio 1888-1951. Oil and gas production charts, well sample cuttings index and excerpts from previous reports.
Petroleum and natural gas series ; no. 3
Report of investigations (Ohio. Division of Geological Survey) ; no. 13