6.O Ferrador ano I, no. 3 [Orgão oficial do PT], (1983 May 1).

6.O Ferrador ano I, no. 3 [Orgão oficial do PT], (1983 May 1)., Box: 16. 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/373836 Accessed September 26, 2026.