2. COC. Normas preparatórias para o VI Congresso. N.p.:, 1981 March;

2. COC. Normas preparatórias para o VI Congresso. N.p.:, 1981 March;, Box: 27. Eduardo Sarno Collection of Leftist Movements in Brazil, 2002-03. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/375942 Accessed September 26, 2026.