Vale 1999, pp. 72–73, 76. Vale, Malcolm (1999). "The War in Aquitaine". In Curry, Anne & Hughes, Michael (eds.). Arms, Armies and Fortifications in the Hundred Years War. Woodbridge, Suffolk: Boydell & Brewer. pp. 69–82. ISBN978-0851157559.
King 2002, pp. 269–270. King, Andy (2002). "According to the Custom Used in French and Scottish Wars: Prisoners and Casualties on the Scottish Marches in the Fourteenth Century". Journal of Medieval History. 28 (3): 263–290. doi:10.1016/S0048-721X(02)00057-X. ISSN0304-4181. S2CID159873083.
King 2002, pp. 269–270. King, Andy (2002). "According to the Custom Used in French and Scottish Wars: Prisoners and Casualties on the Scottish Marches in the Fourteenth Century". Journal of Medieval History. 28 (3): 263–290. doi:10.1016/S0048-721X(02)00057-X. ISSN0304-4181. S2CID159873083.
King 2002, pp. 269–270. King, Andy (2002). "According to the Custom Used in French and Scottish Wars: Prisoners and Casualties on the Scottish Marches in the Fourteenth Century". Journal of Medieval History. 28 (3): 263–290. doi:10.1016/S0048-721X(02)00057-X. ISSN0304-4181. S2CID159873083.