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
"Krepp, Endel",Security and non-aggression : Baltic states and U.S.S.R. treaties of non-aggression,,[Estonian Information Centre],1973,Problems of the Baltic,,,,https://cir.nii.ac.jp/crid/1130282272819337472