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
European Confederation of Agriculture. General Assembly,"43rd General Assembly of the European Confederation of Agriculture, CEA, 7-11 Octover 1991 : Povoa de Varzim (Portugal)",,The Confederation,1991,Publications of CEA,,,,https://cir.nii.ac.jp/crid/1130000797978204672