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
Sudan. Maṣlaḥat al-Iḥṣāʾ,"Sudan foreign trade, 1960-1969 : scope and analysis, with information for 1970",,"Ministry of Planning, Dept. of Statistics",1971,Occasional statistical paper,,,,https://cir.nii.ac.jp/crid/1130000794931500928