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,"Analysis of demographic data of urban areas covered during urban survey, second round, 1969-1971",,"Provisional Military Govt. of Socialist Ethiopia, Central Statistical Office",1977,Statistical bulletin,,,,https://cir.nii.ac.jp/crid/1130000795798434048