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 South Africa. Directorate of Surveys and Mapping,Qudeni,2nd ed.,Chief Director of Surveys and Mapping,1981,[1:50000 scale map],,,,https://cir.nii.ac.jp/crid/1130282269741105280