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
"Dahlgren, B. E.",A forest of the coal age,,Field Museum of Natural History,1933,Leaflet (Field Museum of Natural History. Dept. of Geology),,,,https://cir.nii.ac.jp/crid/1130282271621336192