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
"Piekalkiewicz, Jaroslaw and Bede, Barry","Public opinion polling in Czechoslovakia, 1968-69 : results and analysis of surveys conducted during the Dubcek Era",,Praeger Publishers,1972,Praeger special studies in international politics and government,,,,https://cir.nii.ac.jp/crid/1130000797903883264