TY - RPRT TI - Results of core drilling in 1978 for oil shale in the Eocene Green River Formation, Piceance Creek area of western Colorado AU - M. C. Smith AU - R. B. O'Sullivan PY - 1982 DO - 10.3133/ofr82476 UR - https://pubs.usgs.gov/publication/ofr82476 ID - ofr82476 ER -