"On this day – 21 September"BBC. Retrieved 22 September 2007. "In 1972 the Isle of Rockall Act was passed, which made the rock officially part of Inverness-shire, Scotland."
MacDonald, Fraser (2006) The last outpost of Empire: Rockall and the Cold War. Journal of Historical Geography 32. P627–647. available in pdfArchived 18 February 2006 at the Wayback Machine
MacDonald, Fraser (2006) The last outpost of Empire: Rockall and the Cold War. Journal of Historical Geography 32. P627–647. available in pdfArchived 18 February 2006 at the Wayback Machine