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101 0 $aENG
200 1 $aModel Building in Mathematical Programming$fH. P. Williams.
210   $aChichester$cJohn Wiley$d1978.
215   $axiv, 330 p.$d23 cm
610 0 $aRicerca operativa e programmazione, Programmazione lineare e non lineare
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700  1$aWilliams,$bHilary Paul$f<1943- >$028053
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