World Intellectual Property Organization & Commission of the European Communities. World patent information. Elsevier.
Chicago Style (17th ed.) CitationWorld Intellectual Property Organization and Commission of the European Communities. World Patent Information. Amsterdam: Elsevier.
MLA (8th ed.) CitationWorld Intellectual Property Organization and Commission of the European Communities. World Patent Information. Elsevier.
Warning: These citations may not always be 100% accurate.