http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Stratigraphic cross sections and correlation of lignites in the Sentinel Butte member and upper part of the Tongue River member of the Fort Union Formation between Amidon and Fryburg, North Dakota
37 columnar sections on 1 sheet ; sheet 144 x 106 cm., folded in envelope 25 x 32 cm.
Sentinel Butte member and upper part of the Tongue River member of the Fort Union Formation between Amidon and Fryburg, North Dakota
Miscellaneous field studies (Geological Survey (U.S.)) ; map MF-1765