http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Stratigraphic sections of lower Tertiary strata and charts showing palynomorph and mollusk assemblages, Douglas Creek Arch area, Colorado and Utah
11 sections on 2 sheets ; sheets 105 x 146 cm. and 100 x 142 cm., folded in envelope 30 x 24 cm.
Department of the Interior, U.S. Geological Survey ; by Ronald C. Johnson, Douglas J. Nichols, and John H. Hanley.
Includes text, bibliography, and location and index maps.
Miscellaneous field studies ; map MF-1997