000 00358nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
020 _a8120328930
082 _a628 R215
100 _aRAO ,P.V.
245 0 _aPRINCIPLES OF ENVIRONMENTAL SCIENCE AND ENGINEERING
260 _aNEW DELHI
_bPHI-Learning
_c2006
300 _ax+276p.,24X14Cms.
942 _cBK
_2DDC
999 _c33028
_d33028