000 00445nam a2200193Ia 4500
008 240220s9999 xx 000 0 und d
020 _a9788120319301
041 _aENG
082 _a577.4
100 _aRao P. Venugopala
245 0 _aTextbook of environmental engineering
260 _aNew Delhi
260 _bPhi Learning Pvt. Ltd.
260 _c2015
300 _a"xii, 268p."
365 _b250
650 _aCIVIL
942 _cDBK
999 _c34730
_d34730