EVANS, Jacqueline. Lancashire's Population, 2011 [online]. Lancashire County Council, [cit. 2014-04-30]. Dostupné online. Archivované 2014-04-30 z originálu.
dailymail.co.uk
Roman fort found in Lancaster may have been key to Britain's west coast defences [online]. dailymail.co.uk, [cit. 2020-01-17]. Dostupné online. (po anglicky)
lancashire.gov.uk
EVANS, Jacqueline. Lancashire's Population, 2011 [online]. Lancashire County Council, [cit. 2014-04-30]. Dostupné online. Archivované 2014-04-30 z originálu.