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
"Freytag, Gustav and Wagner, Wilhelm and Breul, Karl","Der Staat Friedrichs des Grossen (Bilder aus deutschen Vergangenheit, vierter Band) : with an appendix of poems on Frederick the Great",Rev. and enl. ed. / by Karl Breul,At the University Press,1924,Pitt Press series,,,,https://cir.nii.ac.jp/crid/1130000794424212608