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 "Radt, F.","Tetracyclic and higher-cyclic compounds, except steroids and triterpenes",,Elsevier,1951,Elsevier's encyclopædia of organic chemistry,,,,https://cir.nii.ac.jp/crid/1130000796632481792