1. Elizalde, José. "Bakuninismo e organização." pp. 5-6. [other title:"Algunos principios bakuninistas de organización revolucionaria."]

1. Elizalde, José. "Bakuninismo e organização." pp. 5-6. [other title:"Algunos principios bakuninistas de organización revolucionaria."], Box: 27. 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/375902 Accessed September 26, 2026.