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
"Opland, Jeff",Xhosa oral poetry : aspects of a Black South African tradition,,Cambridge University Press,1983,Cambridge studies in oral and literate culture,,0521241138,,https://cir.nii.ac.jp/crid/1130282273123689344