000 00306nam a2200133Ia 4500
008 211209s1997 xx 000 0 und d
020 _a0-87371-569-1
041 _aeng
082 _aCAN
100 _aCANTER L W
245 _aNITRATES IN GROUNDWATER
260 _aLONDON
_bCRC PRESS
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300 _a263
999 _c36004
_d36004