TY  - RPRT
TI  - Preliminary geologic map, oil shale yield histograms and stratigraphic sections, Long Point quadrangle, Garfield County, Colorado
AU  - R. C. Johnson
PY  - 1975
DO  - 10.3133/mf688
UR  - https://pubs.usgs.gov/publication/mf688
ID  - mf688
ER  -