1. "Um caminho para a revolução no Brasil." N.p.:, July 1989.

1. "Um caminho para a revolução no Brasil." N.p.:, July 1989., Box: 11, Folder: 18. 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/373197 Accessed September 26, 2026.