"A combined-volume reissue of the IRSE 'green booklets' no. 1. Principles of the layout of signals - no. 2. Principles of interlocking - no. 3. Mechanical and electrical interlocking - no. 10. Mechanical signalling equipment."
Originally published: Teignmouth : Peter Kay, 2000.
British Railway signalling practice. Mechanical. ISBN 090239018X. Published by IRSE in 2004. Publication and catalogue information, links to buy online and reader comments.