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
"Ṭabarī and Humphreys, R. Stephen",The crisis of the early caliphate,,State University of New York Press,1990,SUNY series in Near Eastern studies,,"0791401545,0791401553",,https://cir.nii.ac.jp/crid/1130000797584814336