@misc{indiciae2a6c64dc2e96, title = {Coal resource occurrence maps and coal development potential of the Beebe SW quadrangle, Custer County, Montana}, author = {Colorado School of Mines Research Institute}, year = {1978}, doi = {10.3133/ofr78634}, url = {https://pubs.usgs.gov/publication/ofr78634}, note = {Source identifier: ofr78634} }