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 "Forde, Cyril Daryll",The Yoruba-speaking peoples of South-Western Nigeria,,International African Institute,1951,Ethnographic survey of Africa : Western Africa,,,,https://cir.nii.ac.jp/crid/1130282269178501120