HARTNETT, Stephen. Senator Robert Walker’s 1844 Letter on Texas Annexation: The Rhetorical "Logic" of Imperialism. American Studies, [S. l.], v. 38, n. 1, p. 27–54, 1997. DOI: 10.1353/amsj.v38i1.2750. Disponível em: https://journals.ku.edu/amsj/article/view/2750. Acesso em: 28 apr. 2025.