http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Mississippi Geological, Economic, and Topographical Survey
Compiled by Alvin R. Bicker, Jr. Prepared by Mercury Maps.
A revision of the geologic map published by the Mississippi Geological Society in 1945 in cooperation with the U. S. Geological Survey.
Scale 1:500,000. 1 in. = approx. 8 miles