6. "O peão isolado 1o" [1a. conversa com Ped.(O 'peão isolado')]. N.p.:, 1981.

6. "O peão isolado 1o" [1a. conversa com Ped.(O 'peão isolado')]. N.p.:, 1981., Box: 3. 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/371637 Accessed September 26, 2026.