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 American Drop Forging Institute and American Standards Association and United States. Bureau of Labor Statistics and National Safety Council,Safety code for forging and hot metal stamping,,U. S. Govt. print. off,1927,Bulletin,,,,https://cir.nii.ac.jp/crid/1130282269211324800