Keir, S. D. L. (1966). The constitutional history of modern Britain since 1485 (8th ed.). Van Nostrand.
Lua i Stíl Chicago (17ú heag.)Keir, Sir David Lindsay. The Constitutional History of Modern Britain Since 1485. 8th ed. Princeton, N.J: Van Nostrand, 1966.
Lua MLA (9ú heag.)Keir, Sir David Lindsay. The Constitutional History of Modern Britain Since 1485. 8th ed. Van Nostrand, 1966.
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