Under ten CMEs /
Langridge, E. A.
Marshall, John.
Marshall, Simon.
Nathan, Bruce.
Usk : The Oakwood Press,
c2011.
Vol. 1. Dungald Drummond to W. A. Stanier, 1912-1944. --  vol. 2. C. E. Fairburn to J. F. Harrison, 1944-1959.