References• https://en.wikipedia.org/wiki/St_Paul%27s_Cathedral• https://www.stpauls.co.uk/history-collections/history/arts-programme• https://www.stpauls.co.uk/history-collections/the-collections/architectural-archive• http://www.britainexpress.com/London/st-pauls.htm• http://primaryfacts.com/2450/st-pauls-cathedral-facts-and-information/• https://en.wikipedia.org/wiki/St_Paul's_Cathedral#Old_St_Paul.27s• http://www.aviewoncities.com/buildings/london/stpaulscathedral.htm• https://www.google.com/search?q=winston+churchill&rlz=1C5CHFA_enMY671MY675&biw=1318&bih=694&s

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• http://counterlightsrantsandblather1.blogspot.my/2011/10/christopher-wrens-st-pauls-resurgam.html