000 00464nam a2200181Ia 4500
005 20250220125749.0
008 250220s9999||||xx |||||||||||||| ||und||
020 _a9788120319301
_c195
040 _aMAIN
041 _aEnglish
082 _a628
_bRAO
100 _aRao, P. Venugopala
245 _aTextbook of environmental engineering
260 _aNew Delhi
_bPHI Learning
_c2010
300 _axii,268p.
650 _aEnvironmental Engineering
942 _cBK
999 _c40135
_d40135