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
"Jenkins, Geraint H. and Williams, Mari A","""Let's do our best for the ancient tongue"" : the Welsh language in the twentieth century",,University of Wales Press,2000,Social history of the Welsh language,,0708316581,,https://cir.nii.ac.jp/crid/1130282271578234496