http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Ground-water levels in the United States 1960-64
1 online resource (v, 152 pages) : maps.
prepared under the direction of C.L. McGuinness.
"Prepared in cooperation with the states of Arkansas, Louisiana, Oklahoma, and Texas, and with other agencies."
Ground-water levels in the United States 1960-64, south-central states
Geological Survey water-supply paper ; 1824