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Query > Copyright and Related Rights > Portuguese > Archive
https://www.wipo.int/edocs-stg/pubdocs/pt/copyright/828/wipo_pub_828.pdf
Publication year: 1983
https://www.wipo.int/edocs-stg/pubdocs/pt/wipo_pub_812.pdf
Publication year: 1978
Guia da Convençao de Berna relativa à Protecção das Obras Literárias e Artísticas (Acta de Paris, 1971)