000 00312nam a2200121Ia 4500
008 220201s1995 xx 000 0 eng d
082 _a628.5
_bSReference I
100 _aSrivastava,V.N.
245 0 _aEnvironmental pollution
260 _bAshish Publishing House
_aNew Delhi
_c1995
300 _a84p.
942 _2ddc
999 _c8694
_d8694