000 00322nam a22001337a 4500
020 _a9788170356448
082 _a628
_bARV/EN
245 _aEnvironmental engineering
260 _aDelhi
_bDaya Publishing House
_c2010
300 _a491
700 _aArvind Kumar
_9384
700 _aMishra, Shishir Suman
_9385
942 _cBK
999 _c13986
_d13986