Stringer, "The Emergence of a Nation-State", 1100–1300", p. 67 ; Michael Lynch, Scotland: A New History, p. 64–6 ; Thomas Owen Clancy, History of Gaelic, here
oxforddnb.com
Robert Bartlett, « Turgot (c.1050–1115) », in the Oxford Dictionary of National Biography, Oxford University Press, 2004 , accessed 11 February 2007; William Forbes-Leith, Turgot, Life of St Margaret, Queen of Scotland, passim; Baker, "'A Nursery of Saints", p. 129–132.
