000			00350nam a2200145Ia 4500
001			136661
008			170722s9999 xx 000 0 und d
100			_aTodd, David Keith
245			_aGroundwater hydrology /
250			_a2nd ed.
260			_bToppan , _c1959,1980.
300			_axii+336
653			_aHydrology,underground Water
942			_cGEN
999			_c91317 _d91317