TY - RPRT TI - Effects of surface coal mining and reclamation on the geohydrology of six small watersheds in West-Central Indiana AU - Jeffrey D. Martin AU - Richard F. Duwelius AU - Charles G. Crawford PY - 1990 DO - 10.3133/wsp2368b UR - https://pubs.usgs.gov/publication/wsp2368B ID - wsp2368B ER -