000 00302nam a2200133Ia 4500
100 _aAhirrao,Walmiki. & Ahirrao,Vaibhavi
365 _b20
942 _cBK
654 _a
245 _aEnviroment Science
260 _aPune
_bNirali Prakashan
_c1990 # 1988
082 _a574.5
300 _bHb
_a4,82,42,
999 _c374027
_d374027
041 _aeng