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
"Rice, George S. and Hartmann, Irving",Coal mining in Europe : a study of practices in different coal formations and under various economic and regulatory conditions compared with those in the United States,,U.S. Government Printing Office,1939,Bulletin,,,,https://cir.nii.ac.jp/crid/1130000795415926016