000 00423nam a2200133Ia 4500
008 221122s9999 xx 000 0 und d
082 _a556:614.77 N82
100 _aCentral board for the prevention and control of water pollut
245 0 _aWater pollution control an overview
260 _bCentral board for the prevention and control of water pollut
_aNew Delhi
_c1983
300 _a29 p.
650 _aWater
942 _cBK
999 _c2112
_d2112