000 00322nam a2200133Ia 4500
100 _aArora, R K
020 _a81-7594-049-2
654 _aAIR POLLUTION
942 _cBK
245 _aAir pollution : causes and effective control
260 _aMangal Deep Publ, Jaipur
_c1999
082 _a614.71 Aro
300 _aviii,298p
999 _c29015
_d29015