“Introduction.” St William of York, by Christopher Norton, NED - New edition ed., Boydell and Brewer, Woodbridge, Suffolk; Rochester, NY, 2006, pp. 1–4, www.jstor.org/stable/10.7722/j.ctt14brtbj.9. Accessed 16 Apr. 2021.
Norton, C. (2006). Introduction. In St William of York (pp. 1-4). Woodbridge, Suffolk; Rochester, NY: Boydell and Brewer. Retrieved April 16, 2021, from http://www.jstor.org/stable/10.7722/j.ctt14brtbj.9
Norton, Christopher. "Introduction." In St William of York, 1-4. Woodbridge, Suffolk; Rochester, NY: Boydell and Brewer, 2006. Accessed April 16, 2021. http://www.jstor.org/stable/10.7722/j.ctt14brtbj.9.
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