000 00355nam a2200145Ia 4500
008 230913s9999 xx 000 0 und d
082 _a628 mee
100 _aMeenakshi, P
245 0 _aElements Of Environmental Sicence And Engineering
260 _aNEW DELHI
260 _bPHI
260 _c2008
300 _a312
650 _aEnvironmental Science
999 _c136840
_d136840