000 00516nam a22001817a 4500
999 _c1206
_d1206
003 SLTCLib
008 190828b ce ||||| |||| 00| 0 eng d
020 _a9788120319301
041 _aEnglish
082 _a614.7
_bRAO
100 _aRao, P. Venugopala
_91643
245 _aTextbook of Environmental Engineering
260 _aNew Delhi
_bPHI Learning
_c2002
300 _axii, 268 p
_bill.
_c23 cm
500 _aTextbook of Environmental Engineering
650 0 _92131
_aEnvironmental engineering
942 _2ddc
_cMLN
945 _c3278
_dManu Pasantha PERUMBULI ACHCHIGE