^Holyhead. Ports and Harbours of the UK. [26 April 2016]. (原始内容存档于2020-01-16).
参考书目
Cowsill, Miles; Hendy, John. Holyhead-Dun Laoghaire: From Car Ferry to HSS 1965–1996. Narberth, Pembrokeshire: Ferry Publications. 1996. ISBN 1871947383.
Merrigan, Justin. Dun Laoghaire Holyhead 1826–2015: The rise and decline of Ireland's premier route. Ramsey, Isle of Man: Ferry Publications. 2016. ISBN 9781906608828.