000 00354nam a2200145Ia 4500
008 230913s9999 xx 000 0 und d
082 _a628 men
100 _aMeenakshi, P
245 0 _aElements Of Envirnmental Science And Engnieering
260 _aNEW DELHI
260 _bPHI
260 _c2008
300 _a312
650 _aEnvironmental Science
999 _c136808
_d136808