TY - RPRT TI - Assessment of in-place oil shale resources of the Green River Formation, Piceance Basin, western Colorado AU - Ronald C. Johnson AU - Tracey J. Mercier AU - Michael E. Brownfield AU - Michael P. Pantea AU - Jesse G. Self PY - 2009 DO - 10.3133/fs20093012 UR - https://pubs.usgs.gov/publication/fs20093012 ID - fs20093012 ER -