↑Defence, Ministry of (2004). The Government's expenditure plans 2004–05 to 2005–06. London: Stationery Office. hlm.8. ISBN9780101621229.
↑Lawrence, Nicholas Blake, Richard (2005). The illustrated companion to Nelson's navy (Edisi Paperback). Mechanicsburg, Pa.: Stackpole Books. hlm.8. ISBN9780811732758. Pemeliharaan CS1: Banyak nama: authors list (link)