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,International classification of goods and services for the purposes of the registration of marks : Nice classification,7th ed,World Intellectual Property Organization,1996,WIPO publication,,9280506676,,https://cir.nii.ac.jp/crid/1130282271386014080