{"@context":{"owl":"http://www.w3.org/2002/07/owl#","bibo":"http://purl.org/ontology/bibo/","foaf":"http://xmlns.com/foaf/0.1/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/"},"@id":"https://ci.nii.ac.jp/ncid/BA84542101.json","@graph":[{"@id":"https://ci.nii.ac.jp/ncid/BA84542101#entity","@type":"bibo:Book","foaf:isPrimaryTopicOf":{"@id":"https://ci.nii.ac.jp/ncid/BA84542101.json"},"dc:title":[{"@value":"The coal fields of the United States"}],"dc:creator":"by Charles Willard Hayes","dc:publisher":[{"@value":"G.P.O."}],"dcterms:extent":"24 p.","cinii:size":"30 cm","dc:language":"eng","dc:date":"1902","cinii:ncid":"BA84542101","cinii:ownerCount":"1","foaf:maker":[{"@id":"https://ci.nii.ac.jp/author/DA02681689#entity","@type":"foaf:Person","foaf:name":[{"@value":"Hayes, C. W. (Charles Willard)"}]}],"bibo:owner":[{"@id":"https://ci.nii.ac.jp/library/FA001062","@type":"foaf:Organization","foaf:name":"北海道大学 大学院理学研究科・理学部図書室","rdfs:seeAlso":{"@id":"https://opac.lib.hokudai.ac.jp/opac/opac_openurl/?ncid=BA84542101"}}],"prism:publicationDate":["1902"],"cinii:note":["\"Extract from the twenty-second annual report of the Survey, 1900-1901, pt. 3- Coal, oil, cement\"-- t.p.","At head of title: Department of the Interior. U.S. Geological Survey"]}]}