GRANT KEENER, U. PLAN FOR ACTION AGAINST THE DETAILED SEED. Revista Letras, [S. l.], v. 15, 1966. DOI: 10.5380/rel.v15i0.19835. Disponível em: https://revistas.ufpr.br/letras/article/view/19835. Acesso em: 4 jan. 2026.