TY - RPRT TI - Simulation of ground-water flow in the Prairie du Chien-Jordan aquifer and relation to ground-water contamination by coal-tar derivatives, St. Louis Park, Minnesota AU - J. R. Stark AU - M. F. Hult PY - 1985 UR - https://pubs.usgs.gov/publication/70175830 ID - 70175830 ER -