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 "Crespin, Guy",Two case histories in the Belgian metallurgical industry considered from the trade union standpoint,,"Trade Union Information and Research Service, European Productivity Agency, Oraganisation for European Economic Co-Operation",,Union studies,,,,https://cir.nii.ac.jp/crid/1130282272195565952