000 00270nam a2200121Ia 4500
008 211209s1978 xx 000 0 und d
041 _aeng
082 _a627.17 N78 GAR
100 _aGARG S P
245 _aGROUND WATER AND TUBE WELLS
260 _c1978
300 _a232
999 _c15845
_d15845