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100   $a20001010d--------km-y0itay50------ba
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200 1 $aWater Purification for Plant Operators.$fBy George D. Norcom, Kenneth W. Brown.
210   $aNew York$cMcGraw-Hill Book Co.$d1942
215   $aX,180 p., ill., tav., 23 cm
676   $a628
700  1$aNorcom,$bGeorge D.$015639
702  1$aBrown,$bKenneth W.
801  0$aIT$bUNINA$gRICA$2UNIMARC
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