000 00291nam a2200109Ia 4500
008 200302s9999 xx 000 0 und d
100 _aR. Prakash & S M Choubey
245 _aEnveronmental Plloution and Health Hazwrds
260 _bSociety of Bio Science
260 _c1990
300 _a191 P.,
999 _c5863
_d5863