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
World Intellectual Property Organization,"Strasbourg agreement concerning the international patent classification of March 24, 1971, as amended on September 28, 1979",,World Intellectual Property Organization,1993,WIPO publication,,,,https://cir.nii.ac.jp/crid/1130282269069470080