000 00322nam a2200133Ia 4500
005 20260205051922.0
008 260111s9999||||xx |||||||||||||| ||und||
082 _a646.7 K527B
100 _aBhargava, Gopal
245 0 _aPollution and its control
260 _aN. Delhi
_bMittal
_c1992
300 _a234p.
942 _cBK
999 _c105169
_d105169