000 00593nam a2200253Ia 4500
008 161121s9999 xx 000 0 und d
041 _aENGLISH
082 _aDT21 M1
100 _aQUANO(E A R)
245 0 _aPrinciples of Wastewater Treatment : Biological Processes
260 _c1981
260 _cNational science development board
300 _a1-314
300 _b0
300 _fPaper
365 _b0
365 _dRuppes
366 _ePURCHASE
563 _aHard Binding
590 _aUG
650 _aSoil & Water Conservation
942 _cBK
999 _c60377
_d60377