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
"NBS Semicentennial Symposium on Gravity Waves (June 18-20,1951 : NBS) and U. S. National Bureau of Standards",Gravity waves,,National Bureau of Standards,1952,National Bureau of Standards circular,,,,https://cir.nii.ac.jp/crid/1130000794418125056