TY - RPRT TI - Digital model simulation of the hydrologic flow system, with emphasis on ground water in Spokane Valley, Washington and Idaho AU - E.L. Bolke AU - J.J. Washington PY - 1980 DO - 10.3133/ofr801300 UR - https://pubs.usgs.gov/publication/ofr801300 ID - ofr801300 ER -