GRAVES, Frank. North America: Mosaic, Community, or Fortress?. Norteamérica, Revista Académica del CISAN-UNAM, [S. l.], v. 2, n. 02, 2010. DOI: 10.22201/cisan.24487228e.2007.02.77. Disponível em: https://www.revistanorteamerica.unam.mx/index.php/nam/article/view/77. Acesso em: 5 may. 2024.