The constitutional experiments of the Commonwealth

The Cambridge constitutional history of the United Kingdom. Volume 2, The changing constitution / edited by Peter Cane, H. Kumarasingham.

A student's manual of English constitutional history / by Dudley Julius Medley.

D. J. Medley (Dudley Julius), 1861-1953

English constitutional history : a select bibliography / by S.B. Chrimes and I.A. Roots.

S. B. Chrimes (Stanley Bertram), 1907-1984

Constitutional conventions in Westminster systems : controversies, changes and challenges / edited by Brian Galligan and Scott Brenton.