WELSH, Donald H. SAM CLEMENS’ HANNIBAL, 1836-1838. American Studies, [S. l.], v. 3, n. 1, p. 28–43, 1962. DOI: 10.1353/amsj.v3i1.2087. Disponível em: https://journals.ku.edu/amsj/article/view/2087. Acesso em: 9 apr. 2025.