http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Foraminifera and stratigraphy of the upper part of the Pierre Shale and lower part of the Fox Hills Sandstone (Cretaceous) north-central South Dakota
iv, 121 pages : illustrations (1 folded in pocket), maps. ; 29 cm.
Geological Survey professional paper ; 611