Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Dvornik, Francis",Early Christian and Byzantine political philosophy : origins and background,,"Dumbarton Oaks Center for Byzantine Studies, trustees for Harvard University,Distributed by J.J. Augustin",1966,Dumbarton Oaks studies,,,,https://cir.nii.ac.jp/crid/1130000794903312640