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 "Ullendorff, Edward",The Ethiopians : an introduction to country and people,3d ed,Oxford University Press,1973,Oxford paperbacks,,019285061X,,https://cir.nii.ac.jp/crid/1130282271096998144