000 00252nam a2200109Ia 4500
008 160710s1987 xx 000 0 und d
100 _aSRIVASTAVA,Y.N.
245 _aENVIRONMENTAL POLLUTION
260 _bC.B.S.
_c1987
300 _a244
942 _2ddc
_cB
999 _c47920
_d47920