1.Ferramenta no. 2 [Força das bases da construção do PT], (1982 March).

1.Ferramenta no. 2 [Força das bases da construção do PT], (1982 March)., Box: 21. 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/374856 Accessed September 26, 2026.