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
"Sinn, Stefan",Net external asset positions of 145 countries : estimation and interpretation,,J.C.B. Mohr,1990,Kieler Studien,,"316145698X,3161456971",,https://cir.nii.ac.jp/crid/1130282270844329856