'Bloody Sunday', Derry 30 January 1972 - Names of the Dead and Injured, CAIN Web Service. cain.ulst.ac.uk [online]. [cit. 2007-02-22]. Dostupné v archivu pořízeném z originálu dne 2011-08-06.
'Bloody Sunday', 30 January 1972 - A Chronology of Events, CAIN Web Service. cain.ulst.ac.uk [online]. [cit. 2007-02-22]. Dostupné v archivu pořízeném z originálu dne 2010-12-06.
web.archive.org
'Bloody Sunday', Derry 30 January 1972 - Names of the Dead and Injured, CAIN Web Service. cain.ulst.ac.uk [online]. [cit. 2007-02-22]. Dostupné v archivu pořízeném z originálu dne 2011-08-06.
'Bloody Sunday', 30 January 1972 - A Chronology of Events, CAIN Web Service. cain.ulst.ac.uk [online]. [cit. 2007-02-22]. Dostupné v archivu pořízeném z originálu dne 2010-12-06.