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
Botswana. Central Statistics Office,"Population projections, 1981-2011",,"Central Statistics Office, Ministry of Finance and Development Planning",1987,1981 population and housing census,,,,https://cir.nii.ac.jp/crid/1130000794260685056