000 00380nam a2200133Ia 45e0
008 180110s1992 xx 000 0 und d
020 _a873716795
082 _a541.490113
100 _aWalton, William C
245 0 _aGroundwater Modeling Utilities
260 _aBoca Raton
_bLewis Publishers
_c1992
300 _axi,640p.:
942 _2ddc
_cBK
999 _c520
_d520