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
Ethiopia. Central Statistical Office,"Population of Ethiopia : results from the national sample survey 1st round, 1964-1967",,"Imperial Ethiopian Govt., Central Statistical Office",1971,Statistical bulletin,,,,https://cir.nii.ac.jp/crid/1130282272219537920