[Map of area Thomar-Coimbre-River Mondego-Castello Branco]. Quarter Master General's Office, Horse Guards. Novbr. 22d, 1811. [Copy 6], 1811., Adv.MS.46.10.1(31F). Correspondence and papers of General Sir George Murray., Adv.MSS.46.1.1-46.10.2. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/68040 Accessed September 23, 2024.