Evans, D. Ellis (31 January 1983), Haase, Wolfgang (ed.), "Language Contact in Pre-Roman and Roman Britain", Sprache und Literatur (Sprachen und Schriften [Forts.]), Berlin, Boston: De Gruyter, doi:10.1515/9783110847031-008, ISBN978-3-11-084703-1
Jones, Michael J (2003), "Cities and Urban Life", in Todd, Malcolm (ed.), A Companion to Roman Britain, Oxford, UK: Blackwell Publishing, pp. 162–192, doi:10.1002/9780470998861, ISBN978-0-631-21823-4
Lavan, Myles (February 2016). "The Spread of Roman Citizenship, 14–212 ce: Quantification in the Face of High Uncertainty". Past & Present (230): 3–46. doi:10.1093/pastj/gtv043. hdl:10023/12646. ISSN0031-2746.
Lavan, Myles (February 2016). "The Spread of Roman Citizenship, 14–212 ce: Quantification in the Face of High Uncertainty". Past & Present (230): 3–46. doi:10.1093/pastj/gtv043. hdl:10023/12646. ISSN0031-2746.
Lavan, Myles (February 2016). "The Spread of Roman Citizenship, 14–212 ce: Quantification in the Face of High Uncertainty". Past & Present (230): 3–46. doi:10.1093/pastj/gtv043. hdl:10023/12646. ISSN0031-2746.