000 00313nam a2200121Ia 4500
008 161121s9999 xx 000 0 und d
100 _aAnandan (P) ; Kumaravelan (R.)
245 0 _aPrinciples of Environmental Engineering
260 _cScientific Publs., Chennai
365 _b0
650 _aNIL
942 _cBK
999 _c107590
_d107590