World Intellectual Property Organization. (2021). PCT yearly review 2021 - executive summary: The international patent system. Geneva, Switzerland: WIPO.
Chicago Style CitationWorld Intellectual Property Organization. PCT Yearly Review 2021 - Executive Summary: The International Patent System. Geneva, Switzerland: WIPO, 2021.
MLA CitationWorld Intellectual Property Organization. PCT Yearly Review 2021 - Executive Summary: The International Patent System. Geneva, Switzerland: WIPO, 2021.
Warning: These citations may not always be 100% accurate.