CARLISLE, Rodney. The Attacks on U. S. Shipping that Precipitated American Entry into World War I. The Northern Mariner / Le marin du nord, [S. l.], v. 17, n. 3, p. 41–66, 2007. DOI: 10.25071/2561-5467.363. Disponível em: https://tnm.journals.yorku.ca/index.php/default/article/view/363. Acesso em: 3 apr. 2025.