12. "Uma força que não pode ser subestimada." Transcribed fromA Classe Operária no. 133, (1979 January).

12. "Uma força que não pode ser subestimada." Transcribed fromA Classe Operária no. 133, (1979 January)., 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/372886 Accessed September 26, 2026.