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 United States. Government Printing Office and Printing Industry of America,Electrotyping in the Government Printing Office,,U.S. G.P.O,1950,GPO-PIA joint research bulletin,,,,https://cir.nii.ac.jp/crid/1130282270045263232