Master negative held by Center for Research Libraries, Chicago, Ill. Master negative number: CUSTOM 2004565.
Microfilm. Riverside, Calif., Custom Microfilm Systems. [date of publication not identified]. 1 microfilm reel. 35 mm.
Vanguardía socialista (Rio de Janeiro, Brazil). (Published: Rio de Janeiro. Scattered issues: Sept. 14,1945-Nov. 1,1947;Aug. 31,1948) -- Resenha socialista (Published: Rio de Janeiro. July 1956) -- Folha socialista (Published: Rio de Janeiro. Nov. 27, 1947) -- Orientação socialista (Published: São Paulo. Three issues filmed in reverse order: Nov. 5, 1946, May 1,June 20, 1947) -- Ação socialista. (Published: São Paulo, No. 1-9, Dec. 1958-Aug. 1960, undated issue) -- Projeto de programa e estatutos da Liga Socialista Independente (Statutes of the Liga Socialista Independente of São Paulo. Published: 1956) -- Luta (Recife, Brazil). (Published: Recife. Jan. 19-Aug 25, 1948) -- Popular (Recife, Brazil). (Published: Recife. Aug. 28-Nov 27, 1948)