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100   $a20030926d1968----km-y0itay50------ba
101 0 $aeng
200 1 $aEngineering management of water quality$fP.H. McGauhey
210   $aNew York$cMcGraw Hill Book$d1968
215   $a295 p.$d23 cm
300   $aBibl. Ing. Sanitaria
610 0 $aACQUE POTABILI QUALITA'
700  1$aMcGauhey,$bPercy Harold$0383279
702  1$aWolf,$bHarold W.
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996   $aEngineering management of water quality$9512566
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