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 Society for Testing Materials,"Papers on radiography : presented at the fifty-second annual meeting, Atlantic City, N.J., June 27, 1949",,ASTM,1950,ASTM special technical publication,,,,https://cir.nii.ac.jp/crid/1130000798302079616