@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:descriptionLevel <http://id.loc.gov/ontologies/bibframe-2-6-0/> ] ;
    bf:carrier <http://id.loc.gov/vocabulary/carriers/nc> ;
    bf:dimensions "28 cm" ;
    bf:extent [ a bf:Extent ;
            rdfs:label "7 volumes" ;
            bf:note [ a bf:Note,
                        <http://id.loc.gov/vocabulary/mnotetype/physical> ;
                    rdfs:label "illustrations" ] ] ;
    bf:frequency <http://id.loc.gov/vocabulary/frequencies/qrt> ;
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            bf:source <http://id.loc.gov/vocabulary/organizations/dnlm> ;
            rdf:value "C31460000" ],
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            rdf:value "   75649457 " ],
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            rdfs:label "Vol. 11, no. 2 (summer 1968) issued separately under title: The Columbia University forum anthology." ],
        [ a bf:Note,
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        [ a bf:Note,
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            bf:status <http://id.loc.gov/vocabulary/mstatus/ceased> ] ;
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    bf:title [ a bf:Title ;
            bf:mainTitle "Columbia forum" ] .