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 "Damianova-Ivanova, Antoaneta and Council of Europe. Council for Cultural Co-operation",Secondary education in the Bulgaria,,Council of Europe Press,1995,Collection education,,9287127433,,https://cir.nii.ac.jp/crid/1130282272788490752