TY - RPRT TI - Documentation of model input and output values for the geohydrology and ground-water-flow simulation of the Surprise Spring basin aquifer system, San Bernardino County, California AU - H. T. Mitten AU - C.J. Londquist PY - 1991 DO - 10.3133/ofr91482 UR - https://pubs.usgs.gov/publication/ofr91482 ID - ofr91482 ER -