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200 1 $aOperational mathematics$fRuel V. Churchill
205   $athird edition
210   $aTokyo$cMcGraw Hill$d1958
215   $aXII, 481 p.$cill.$d21 cm
225 2 $aInternational student edition
410  0$12001$aInternational student edition
606 0 $aCalcolo operatorio
676   $a515.72
700  1$aCHURCHILL,$bRuel V.$0447
801  0$aIT$bsalbc$gISBD
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951   $a515.72 CHU$b2828/CBS$c515.72$d00222004
959   $aBK
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979   $aRSIAV7$b90$c20090529$lUSA01$h1027
996   $aOperational mathematics$934009
997   $aUNISA