@prefix bf: <http://id.loc.gov/ontologies/bibframe/> .
@prefix bflc: <http://id.loc.gov/ontologies/bflc/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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            bf:date "2026-09-11T20:21:37.005517+00:00"^^xsd:dateTime ;
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            bf:status <http://id.loc.gov/vocabulary/mstatus/incmp> ],
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            bf:descriptionAuthentication <http://id.loc.gov/vocabulary/marcauthen/pcc> ;
            bf:descriptionLanguage <http://id.loc.gov/vocabulary/languages/eng> ;
            bf:descriptionLevel <http://id.loc.gov/ontologies/bibframe-2-6-0/> ] ;
    bf:extent [ a bf:Extent ;
            rdfs:label "55 volumes" ] ;
    bf:identifiedBy [ a bf:Identifier ;
            rdf:value "NU051" ],
        [ a bf:Lccn ;
            rdf:value "   25024519 " ] ;
    bf:instanceOf <https://stage.bcld.info/works/442c7592-329d-40cf-9ee0-062779f30b09> ;
    bf:publicationStatement "Geneva: International Labour Office, 1921-1974" ;
    bf:title [ a bf:Title ;
            bf:mainTitle "Official bulletin" ] .