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101 0 $aeng
200 1 $aEconomic aspects of treatment and disposal of certain industrial effluents$fWater Poll. and Econ.
210   $aNew York$cUnited Nations$d1967
215   $a2 v. (132 p.)$d25 cm
300   $aBibl. Ing. Sanitaria
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700  1$aNazioni Unite.$bEconomic Commission for Europe$0494349
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