4.O Prumo, (30 October 1992).

4.O Prumo, (30 October 1992)., Box: 17. 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/374073 Accessed September 27, 2026.