Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Busek, Vratislav and Spulber, Nicolas",Czechoslovakia,,Published for the Mid-European Studies Center of the Free Europe Committee by F.A. Praeger,1957,East-Central Europe under the Communists,,,,https://cir.nii.ac.jp/crid/1130000798093688832