Wales
BARRIE, D.S. & KIDNER, R.W.
The Rhymney Railway
Oakwood Library of Railway History OL9
First edition published in 1952 by D.S.M. Barrie and subsequently reprinted. After his death, R.W. Kidner produced an expanded and well illustrated second edition of this standard history.
BARRIE, D.S.M.
A Regional History of the Railways of Great Britain - South Wales
A Regional History of the Railways of Great Britain Volume 12
BARRIE, D.S.M.
The Brecon & Merthyr Railway
Oakwood Library of Railway History OL13