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
African Regional Conference and International Social Security Association,"Third African Regional Conference, Abidjan, 6-14 September 1968 : reports and documents",,General Secretariat of the International Social Security Association,1968,African social security series,,,,https://cir.nii.ac.jp/crid/1130000798392502528