00877nam0-22003131i-450-990000077630403321000007763FED01000007763(Aleph)000007763FED0100000776320011111d--------km-y0itay50------baitay-------001yyInformation retrievalthe essential technologyRoger Meetham.LondonAldus books1969192 p.ill.22 cmAldus science and technology seriesReti informativeDocumentazioneAutomazione005.74Meetham,Roger5266ITUNINARICAUNIMARCBK99000007763040332113 U 03 1127269FINBCFINBCInformation retrieval110532UNINAING01