著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Lesquereux, Leo",Description of the coal flora of the Carboniferous formation in Pennsylvania and throughout the United States,,Board of Commissioners for the Second Geological Survey,1880,Second geological survey of Pennsylvania : report of progress,,,,https://cir.nii.ac.jp/crid/1130282270589475328