Infrastructure
CARTER, Ernst F.
The Railway Encyclopaedia
A - Z of 5,000 railway terms, including companies, technical terms, jargon and biographical notes.
CHALLIS, W.H.
Track Circuits (British Practice)
The Institution of Railway Signal Engineers Booklet No. 9
CHALLIS, W.H.
Holding the Route
The Institution of Railway Signal Engineers Booklet No. 16
CHALLIS, W.H.
Principles of the Layout of Signals (British Practice)
The Institution of Railway Signal Engineers Booklet No. 1
CHAMPION, Donald L.
Mechanical Signalling Equipment (British Practice)
The Institution of Railway Signal Engineers Booklet No. 10
