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
"Somerville, Robert",Pope Alexander III and the Council of Tours (1163) : a study of ecclesiastical politics and institutions in the twelfth century,,University of California Press,1977,"Publications of the Center for Medieval and Renaissance Studies, UCLA",,0520031849,,https://cir.nii.ac.jp/crid/1130282272012217088