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
"Senelle, Robert and Belgium. Ministère des affaires étrangères et du commerce extérieur","The political, economic and social structures of Belgium",,Ministry of Foreign Affairs and External Trade,1970,Memo from Belgium,,,,https://cir.nii.ac.jp/crid/1130000794194302720