Walton 2010, pp. 68, 71; Lowry 2006, p. 12; Biddle et al. 2001, p. 25 Walton, Steven A. (2010). "State Building Through Building for the State: Foreign and Domestic Expertise in Tudor Fortification". Osiris. 25 (1): 66–84. doi:10.1086/657263. S2CID144384757. Lowry, Bernard (2006). Discovering Fortifications: From the Tudors to the Cold War. Princes Risborough, UK: Shire Publications. ISBN978-0-7478-0651-6. Biddle, Martin; Hiller, Jonathon; Scott, Ian; Streeten, Anthony (2001). Henry VIII's Coastal Artillery Fort at Camber Castle, Rye, East Sussex: An Archaeological Structural and Historical Investigation. Oxford, UK: Oxbow Books. ISBN0-904220-23-0.
Walton 2010, pp. 71, 84; Hale 1983, p. 74 Walton, Steven A. (2010). "State Building Through Building for the State: Foreign and Domestic Expertise in Tudor Fortification". Osiris. 25 (1): 66–84. doi:10.1086/657263. S2CID144384757. Hale, J. R. (1983). Renaissance War Studies. London, UK: Hambledon Press. ISBN0-907628-17-6.
"List Entry", Historic England, retrieved 9 April 2015
Biddle et al. 2001, pp. 14, 135; "List Entry", Historic England, retrieved 9 April 2015 Biddle, Martin; Hiller, Jonathon; Scott, Ian; Streeten, Anthony (2001). Henry VIII's Coastal Artillery Fort at Camber Castle, Rye, East Sussex: An Archaeological Structural and Historical Investigation. Oxford, UK: Oxbow Books. ISBN0-904220-23-0.
Biddle et al. 2001, p. 338; "List Entry", Historic England, retrieved 9 April 2015 Biddle, Martin; Hiller, Jonathon; Scott, Ian; Streeten, Anthony (2001). Henry VIII's Coastal Artillery Fort at Camber Castle, Rye, East Sussex: An Archaeological Structural and Historical Investigation. Oxford, UK: Oxbow Books. ISBN0-904220-23-0.
Walton 2010, pp. 68, 71; Lowry 2006, p. 12; Biddle et al. 2001, p. 25 Walton, Steven A. (2010). "State Building Through Building for the State: Foreign and Domestic Expertise in Tudor Fortification". Osiris. 25 (1): 66–84. doi:10.1086/657263. S2CID144384757. Lowry, Bernard (2006). Discovering Fortifications: From the Tudors to the Cold War. Princes Risborough, UK: Shire Publications. ISBN978-0-7478-0651-6. Biddle, Martin; Hiller, Jonathon; Scott, Ian; Streeten, Anthony (2001). Henry VIII's Coastal Artillery Fort at Camber Castle, Rye, East Sussex: An Archaeological Structural and Historical Investigation. Oxford, UK: Oxbow Books. ISBN0-904220-23-0.
Walton 2010, pp. 71, 84; Hale 1983, p. 74 Walton, Steven A. (2010). "State Building Through Building for the State: Foreign and Domestic Expertise in Tudor Fortification". Osiris. 25 (1): 66–84. doi:10.1086/657263. S2CID144384757. Hale, J. R. (1983). Renaissance War Studies. London, UK: Hambledon Press. ISBN0-907628-17-6.