2011 World intellectual property report : the changing face of innovation. - Geneva : World Intellectual Property Organization (WIPO), [2011 ]. - 184 p. : col. ill. - WIPO economics & statistics series . Includes bibliographical references ISBN: 9789280521603 Subjects--Topical Terms: Intellectual property--StatisticsPatents--StatisticsTrademarks--StatisticsIndustrial property--Statistics LC Class. No.: K 1401 / T867 2011