APA
International Patent Classification. : [Geneva Switzerland] : World Intellectual Property Organization M眉nchen : C. Heymanns Verlag 2006.
Chicago
International Patent Classification. : [Geneva Switzerland] : World Intellectual Property Organization M眉nchen : C. Heymanns Verlag 2006.
Harvard
International Patent Classification. : [Geneva Switzerland] : World Intellectual Property Organization M眉nchen : C. Heymanns Verlag 2006.
MLA
: [Geneva Switzerland] : World Intellectual Property Organization M眉nchen : C. Heymanns Verlag 2006. .
