000 00285nam a2200121Ia 4500
008 221122s9999 xx 000 0 und d
082 _a556.34 N75
100 _aDavis,J.M.
245 0 _aTwo-dimensional groundwater flow
260 _bWRC
_c1975
650 _aGroundwater flow
942 _cBK
999 _c754
_d754