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
"Bendor-Samuel, John",Ten Nigerian tone systems,,"Institute of Linguistics,Centre for the Study of Nigerian Languages, Abdullahi Bayero College, Ahmadu Bello University",1974,Language data,,,,https://cir.nii.ac.jp/crid/1130000796884842752