By O. S. Nock. The Great Western Railway in the Twentieth Century. Published by Ian Allan. 1964 First Edition.
The Great Western Railway in the 19th Century by O S Nock
THE LANCASHIRE & YORKSHIRE RAILWAY IN THE TWENTIETH CENTURY
THE GREAT WESTERN RAILWAY IN THE 1930s Vol 1 & 2, Geen & Scott, Steam Engines
THE GREAT WESTERN RAILWAY IN THE 1930s. 2 Hardback volumes
World Steam in the Twentieth Century - E.S. Cox 1st edition Hardback
