Editors: Esperidião de Medicis Dilotti and Magnus Söndahl.
Description based on: Anno 1, num. 3 (24 dia do 12. mez de 111); title from caption.
Latest issue consulted: Anno 2, num. 6 (3. dia do 3. mez de 112).
Filmed with other periodicals.
Microfilm. Leiden, The Netherlands : IDC Publishers, 1999. 1 microfilm reel ; 35 mm. (Latin American anarchist and labour periodicals, 1880-1940 ; reel 64)
In Portuguese, some Italian and Spanish.