000 00338nam a2200133Ia 4500
020 _a8120319303
082 _a628
_bRAO
100 _aRao, P. Venugopala
245 _aTextbook of environmental engineering.
260 _aNew Delhi
_bPrentice Hall of India Pvt. Ltd.
_c2004
300 _axii, 268p.
890 _aIndia
999 _c33936
_d33936