TY - RPRT TI - Hydrology of area 25, Eastern Region, Interior Coal Province, Illinois AU - E.E. Zuehls AU - G.L. Ryan AU - D.B. Peart AU - K. K. Fitzgerald PY - 1981 DO - 10.3133/ofr81636 UR - https://pubs.usgs.gov/publication/ofr81636 ID - ofr81636 ER -