1. Q. "Alguns elementos a serem considerados sobre o funcionamento do partido." N.p.:, 1981 January.

1. Q. "Alguns elementos a serem considerados sobre o funcionamento do partido." N.p.:, 1981 January., Box: 19. 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/374416 Accessed September 26, 2026.