Galeano, Eduardo; Nogueira, Armando (30 June 2009). "Silêncio no Maracanã". Revista de História (in Brazilian Portuguese). Archived from the original on 4 December 2013.
Galeano, Eduardo; Nogueira, Armando (30 June 2009). "Silêncio no Maracanã". Revista de História (in Brazilian Portuguese). Archived from the original on 4 December 2013.