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
"Unesco and Grabar, André and Mii︠a︡tev, Krŭsti︠u︡",Bulgaria : mediaeval wall paintings,,Published by the New York Graphic Society by arrangement with UNESCO,1961,Unesco world art series,,,,https://cir.nii.ac.jp/crid/1130000797803886976