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
"Ludz, Peter Christian",The German Democratic Republic from the sixties to the seventies : a socio-political analysis,,AMS Press,1974,Occasional papers in international affairs,,0404546269,,https://cir.nii.ac.jp/crid/1130000796515601408