TY - GEN AU - Aral, M.M. TI - Ground water modeling in multilayer aquifers : unsteady flow SN - 0-87371-305-2 PY - 1990/// CY - Michigan PB - Lewis Publishers KW - WATER RESOURCES-GROUNDWATER KW - HYDROLOGY KW - FLOW OF FLUIDS-UNSTEADY FLOW KW - AQUIFERS ER -