TY - RPRT TI - Geology of the Pust lignite bed in the Burns Creek-Thirteenmile Creek known coal leasing area, Dawson and Richland Counties, Montana AU - John M. Spencer PY - 1976 DO - 10.3133/ofr76617 UR - https://pubs.usgs.gov/publication/ofr76617 ID - ofr76617 ER -