3. Comitê Regional Provisório do Pará do PC do B. "Circular do CRP." N.p.:, 1980 October.

3. Comitê Regional Provisório do Pará do PC do B. "Circular do CRP." N.p.:, 1980 October., Box: 14. 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/373487 Accessed September 26, 2026.