000 00298nam a2200121Ia 4500
008 161018s9999 xx 000 0 und d
020 _a9788122418354
100 _aCs.Rao
_95671
245 _aEnvironmental Pollution Control Engineering
260 _bNew Chand
300 _bRs:225
490 _a16030
999 _c16030
_d16030