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
"Austen, Ralph A. and Derrick, Jonathan","Middlemen of the Cameroons Rivers : the Duala and their hinterland, c. 1600-c. 1960",,Cambridge University Press,1999,African studies series,,"0521562287,9780521566643",,https://cir.nii.ac.jp/crid/1130282269125865216