The Industrial Development of the Ebbw Valleys, 1780-1914
John Elliott
Religion, Secularization and Social Change in Wales
Paul Chambers
Geiriadur Prifysgol Cymru: v. 2, Parts 22-36
Gareth A. Bevan
Geiriadur Prifysgol Cymru: v. 1, Parts 1-21
R. J. Thomas
Geiriadur Prifysgol Cymru: 4 Vol. Set
University of Wales Press
O Dan Lygaid y Gestapo
