TY - RPRT TI - Geologic setting and water quality of selected basins in the active coal-mining areas of Ohio, 1989-91, with a summary of water quality for 1985-91 AU - A. C. Sedam AU - D.S. Francy PY - 1993 DO - 10.3133/wri934094 UR - https://pubs.usgs.gov/publication/wri934094 ID - wri934094 ER -