TY  - RPRT
TI  - Stratigraphic sections of lower Tertiary strata and charts showing palynomorph and mollusk assemblages, Douglas Creek Arch area, Colorado and Utah
AU  - R. C. Johnson
AU  - D. J. Nichols
AU  - J.H. Hanley
PY  - 1988
DO  - 10.3133/mf1997
UR  - https://pubs.usgs.gov/publication/mf1997
ID  - mf1997
ER  -