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
"Euler, Leonhard and Maupertuis and Frederick II, King of Prussia and Costabel, Pierre and Fellmann, Emil Alfred",Leonhardi Euleri Commercium epistolicum : commercium cum P.-L.M. de Maupertuis et Frédéric II,,Birkhäuser,1986,Leonhardi Euleri Opera omnia,,3764311843,,https://cir.nii.ac.jp/crid/1130000795454296064