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
"Prah, K. K. and Botswana, University College of and National Institute for Research in Development and African Studies, Documentation Unit",Notes and comments on aspects of Tswana feudalism in the precolonial period,,"University College of Botswana. National Institute for Research in Development and African Studies, Documentation Unit",1977,Working paper,,,,https://cir.nii.ac.jp/crid/1130000797402772992