TY - GEN AU - Thomas, R.G. TI - Groundwater models SN - 9251006725 PY - 1973/// CY - Rome PB - FAO KW - GROUNDWATER-HYDROLOGY KW - WATER RESOURCES-MODELLING KW - HYDROLOGY KW - HYDROGEOLOGY KW - NUMERICAL MODELLING KW - GROUNDWATER BASINS-MODELLING KW - IRRIGATION ER -