Viton, Albert
Great Britain : an empire in transition
John Day Company, 1940
 Buku Teks SO
Moodie, Graeme C.
The Government of Great Britain
Crowell, 1971
 Buku Teks SO
Bosworth, A.B.
Conquest and empire : the reign of Alexander the Great
Cambridge University Press, 1995
 Buku Teks SO
Philip, George
The shell road atlas of Great Britain
George Philip and Son, 1983
 Buku Referensi
Campion, H.
Public and private property in Great Britain
Oxford University Press, 1939
 Buku Teks