Staff, International Sociological Association, Research Committee on Migration (RC31) Inter-Congress Meeting; Migration, International Sociological Association Research Committee on (2004). Migration Between States and Markets(en inglés). Ashgate. ISBN978-0-7546-4231-2. Consultado el 17 de abril de 2021.
Douglas M. Bradburn, "'True Americans' and 'Hordes of Foreigners': Nationalism, Ethnicity and the Problem of Citizenship in the United States, 1789-1800." Historical Reflections/Réflexions Historiques (2003): 19-41. online