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
"Böhning, W. R. (Wolf-Rüdiger)",Black migration to South Africa : a selection of policy-oriented research,,International Labour Office,1981,A WEP study,,"9221027589,9221027597",,https://cir.nii.ac.jp/crid/1130282271820517760