19. S.O. " Situação e encaminhamentos do material recolhido na 1a. Conf. Reg." N.p.:, undated

19. S.O. " Situação e encaminhamentos do material recolhido na 1a. Conf. Reg." N.p.:, undated, Box: 9. 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/372770 Accessed September 26, 2026.