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200 1 $aInformation retrieval systems$echaracteristics, testing and evaluation$fF. Wilfrid Lancaster.
210   $aNew York$cJ. Wiley and Sons$d1968
215   $aXIV, 222 p.$cill.$d23 cm
225 1 $aInformation sciences series
610 0 $aReti informative
610 0 $aDocumentazione$aAutomazione
676   $a005.74
700  1$aLancaster,$bFrederick Wilfrid
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