TY - RPRT TI - Geochemical and mineralogical analyses of U.S. Geological Survey oil-shale core CR-2, Piceance Creek basin, Colorado AU - W.E. Dean AU - Janet K. Pitman AU - G.H. Harrach PY - 1981 DO - 10.3133/ofr81596 UR - https://pubs.usgs.gov/publication/ofr81596 ID - ofr81596 ER -