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
"Waller, Bruce","Bismarck at the crossroads : the reorientation of German foreign policy after the Congress of Berlin, 1878-1880",,Athlone Press,1974,University of London historical studies,,,,https://cir.nii.ac.jp/crid/1130000795171828352