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
"Williams, Howel","Volcanoes of the Parícutin region, Mexico : geologic investigations in the Paricutin Area, Mexico",,U.S. Govt.Print. Off.,1950,Geological Survey bulletin,,,,https://cir.nii.ac.jp/crid/1130000793891258368