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
"Vossen, Rainer","Patterns of language knowledge and language use in Ngamiland, Botswana",,E. Breitinger : Bayreuth University,1988,Bayreuth African studies series,,,,https://cir.nii.ac.jp/crid/1130282271216934400