2.O Petroleiro ano V, no. 62 [SINDIPETRO: Informativo do Sindicato "Especial para o CONCLAT-83"], (1983 August 26).

2.O Petroleiro ano V, no. 62 [SINDIPETRO: Informativo do Sindicato "Especial para o CONCLAT-83"], (1983 August 26)., Box: 24. 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/375264 Accessed September 26, 2026.