TY - RPRT TI - Shorter contributions to the stratigraphy and geochronology of Upper Cretaceous rocks in the Western Interior of the United States AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1995 DO - 10.3133/b2113 UR - https://pubs.usgs.gov/publication/b2113 ID - b2113 ER -