1. O Vergalhão [Informativo dos Trabalhadores da USIBA. Sindicato dos Metalúrgicos, BA], (ca. 1987?).

1. O Vergalhão [Informativo dos Trabalhadores da USIBA. Sindicato dos Metalúrgicos, BA], (ca. 1987?)., Box: 29, Folder: 10. 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/376187 Accessed September 26, 2026.