TY  - RPRT
TI  - Preliminary isopach and sand/shale ratio maps of the Cambrian Davis Formation, Rolla 1 degree by 2 degrees Quadrangle, Missouri
AU  - J. L. Thacker
AU  - K. H. Anderson
PY  - 1979
DO  - 10.3133/mf1002d
UR  - https://pubs.usgs.gov/publication/mf1002D
ID  - mf1002D
ER  -