TY  - BOOK
AU  - Wilson,H.Raynar
TI  - Mechanical railway signilling: second and revised edition of railway signalling 
U1  - 131 
PY  - 0000///[n.d.]
CY  - London
PB  - Railway Engineer
KW  - Electronic mail systems
KW  - Evaluation
KW  - Wireless communication systems
N1  - Includes index
ER  -