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
"Gerhoh, of Reichersberg, Provost of Reichersberg, ca. and Häring, Nikolaus M.",Letter to Pope Hadrian about the novelties of the day,,Pontifical Institute of Mediaeval Studies,1974,Studies and texts,,0888440243,,https://cir.nii.ac.jp/crid/1130282269056871296