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 "Webby, B. D. and International Union of Geological Sciences. International Subcommission on Ordovician Stratigraphy","The Ordovician system in Australia, New Zealand and Antarctica : correlation chart and explanatory notes",,"IUGS Secretariat,IUGS Editorial Office",1981,International Union of Geological Sciences publication,,,,https://cir.nii.ac.jp/crid/1130000797068755200