@misc{indiciae664dae2dcb6e, title = {Coal geology and resource calculations of the South Belfield area, Billings and Stark counties, North Dakota}, author = {Arthur C. Banet}, year = {1980}, doi = {10.3133/ofr80870}, url = {https://pubs.usgs.gov/publication/ofr80870}, note = {Source identifier: ofr80870} }