TY  - RPRT
TI  - Oil-shale Fischer assay data, tables of average oil-yield values, and oil-yield histograms of U.S. Geological Survey coreholes CR-1 and CR-2, Piceance Creek Basin, Colorado
AU  - John R. Donnell
AU  - Janet K. Pitman
PY  - 1975
DO  - 10.3133/ofr75580
UR  - https://pubs.usgs.gov/publication/ofr75580
ID  - ofr75580
ER  -