INTERNET ARCHIVE. Biblioteca Digital, sem fins lucrativos, de livros, filmes, música, softwares etc.
BARRA, E I. A tale of two oceans: New story by an old Californian. An Account of a Voyage from Philadelphia to San Francisco, around Cape Horn, Years 1849-50, calling at Rio de Janeiro, Brazil, and at Juan Fernandez, in the South Pacific. São Francisco, Estados Unidos: [s.n.], 1893.
