Childs, David
Britain since 1945 : a political history / David Childs
Methuen, 1979
 Buku Teks
Britain since 1945 / edited, Terry Gourvish
edited by Terry Gourvish
Macmillan Education, 1991
 Buku Teks
Moodie, Graeme C.
The Government of Great Britain
Crowell, 1971
 Buku Teks
Emden, Cecil S.
The people and the constitution : being a history of the development of the people influence in British Government / Cecil S. Emden
At The Clarendon Press, 1956
 Buku Teks
Keir, David Lindsay
The Constitutional history of modern Britain since 1485
Adam and Charles Black, 1961
 Buku Teks