http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Petrology of the Nodaway underclay (Pennsylvanian) Kansas
Nodaway underclay (Pennsylvanian) Kansas
Bulletin (Kansas Geological Survey) ; 119, pt. 6
Reports of studies (Kansas Geological Survey) ; 1956, pt. 6