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
,1973 a successful year : report of the Central Statistical Board of the GDR on the implementation of the 1973 National Economic Plan,,Verlag Zeit im Bild,1974,Documents on the policy of the German Democratic Republic,,,,https://cir.nii.ac.jp/crid/1130000798239542912