@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:adminMetadata [ a bf:AdminMetadata ;
            bflc:catalogerId "Unknown" ;
            bf:date "2026-09-11" ;
            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/> ],
        [ a bf:AdminMetadata ;
            bf:agent <http://id.loc.gov/vocabulary/organizations/cbc> ;
            bf:date "2026-09-11T20:18:01.636968+00:00"^^xsd:dateTime ;
            bf:derivedFrom <http://id.loc.gov/resources/instances/20929199> ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/incmp> ] ;
    bf:extent [ a bf:Extent ;
            rdfs:label "320 pages" ] ;
    bf:identifiedBy [ a bf:Isbn ;
            bf:qualifier "hbk" ;
            rdf:value "9781472953315" ],
        [ a bf:Isbn ;
            bf:qualifier "paperback" ;
            rdf:value "9781472953322" ],
        [ a bf:Lccn ;
            rdf:value "  2018493805" ] ;
    bf:instanceOf <https://stage.bcld.info/works/4ec54840-4e28-4889-a0dd-b5bdf034597e> ;
    bf:publicationStatement "London: Bloomsbury Sigma, 2019" ;
    bf:title [ a bf:Title ;
            bf:mainTitle "Clearing the air" ;
            bf:subtitle "the beginning and the end of air pollution" ] .