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
"Oren, Nissan","Bulgarian communism : the road to power, 1934-1944",,Columbia University Press,1971,East Central European studies,,,,https://cir.nii.ac.jp/crid/1130000794181314432