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
Nigeria. National Manpower Board,Student intake and out-turn 1971 and 1972 : technical colleges and vocational institutions,,National Manpower Board,1973,"Manpower studies (Lagos, Nigeria)",,,,https://cir.nii.ac.jp/crid/1130282269376834944