http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Division of Geological Survey and Water Resources.
Vols. 1-24 (1903-30) issued by Bureau of Geology and Mines; v. 25-31 (1938-45) by the division under a variant name: Missouri Geological Survey and Water Resources.