TY - RPRT TI - Nahcolite resources in the Green River Formation, Piceance Basin, northwestern Colorado AU - Michael E. Brownfield AU - Ronald C. Johnson AU - Jesse G. Self AU - Tracey J. Mercier PY - 2009 DO - 10.3133/fs20093011 UR - https://pubs.usgs.gov/publication/fs20093011 ID - fs20093011 ER -