@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#> .

<https://stage.bcld.info/instances/2252007b-2a13-4ab1-838d-0762e4e13683> a bf:Instance ;
    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 "2026-09-11T20:13:46.188379+00:00"^^xsd:dateTime ;
            bf:derivedFrom <http://id.loc.gov/resources/instances/11404408> ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/c> ] ;
    bf:carrier <http://id.loc.gov/vocabulary/carriers/nc> ;
    bf:dimensions "26 cm" ;
    bf:extent [ a bf:Extent ;
            rdfs:label "volumes" ;
            bf:note [ a bf:Note,
                        <http://id.loc.gov/vocabulary/mnotetype/physical> ;
                    rdfs:label "illustrations" ] ] ;
    bf:frequency [ a bf:Frequency ;
            rdfs:label "Quarterly" ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/current> ],
        <http://id.loc.gov/vocabulary/frequencies/qrt> ;
    bf:identifiedBy [ a bf:Lccn ;
            rdf:value "   92645079 " ] ;
    bf:instanceOf <https://stage.bcld.info/works/40d556ba-6d43-4ef1-8294-3f56323056b0> ;
    bf:issuance <http://id.loc.gov/vocabulary/issuance/serl> ;
    bf:media <http://id.loc.gov/vocabulary/mediaTypes/n> ;
    bf:note [ a bf:Note,
                <http://id.loc.gov/vocabulary/mnotetype/descsource> ;
            rdfs:label "Description based on: 1988, no. 1; title from cover." ],
        [ a bf:Note,
                <http://id.loc.gov/vocabulary/mnotetype/descsource> ;
            rdfs:label "Latest issue consulted: 1990, 4." ],
        [ a bf:Note,
                <http://id.loc.gov/vocabulary/mnotetype/issuing> ;
            rdfs:label "Sponsored by: Nanjing da xue di qiu ke xue xi." ] ;
    bf:provisionActivity [ a bf:ProvisionActivity,
                bf:Publication ;
            bflc:simpleAgent "Nanjing da xue xue bao bian ji bu",
                "南京大学学报编辑部"@zh-hani ;
            bflc:simplePlace "Nanjing",
                "南京"@zh-hani ;
            bf:date "19XX/.."^^<http://id.loc.gov/datatypes/edtf> ;
            bf:place <http://id.loc.gov/vocabulary/countries/cc> ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/current> ] ;
    bf:publicationStatement "Nanjing: Nanjing da xue xue bao bian ji bu",
        "南京: 南京大学学报编辑部"@zh-hani ;
    bf:title [ a bf:Title ;
            bf:mainTitle "Nanjing da xue xue bao",
                "南京大學学報"@zh-hani ;
            bf:partName "Di qiu ke xue",
                "地球科学"@zh-hani ;
            bf:subtitle "Journal of Nanjing University. Earth sciences.",
                "Journal of Nanjing University. Earth sciences."@zh-hani ] .