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
"Gregory I, Pope, ca. and Minard, Pierre and Reydellet, Marc",Registre des lettres,,Éditions du Cerf,1991,Sources chrétiennes,,"2204041505,2204043877,9782204087353",,https://cir.nii.ac.jp/crid/1130000797961695872