Improvement of signalling and telecommunication in the railway systems of the region where electric power supply and adequate transmission lines are not available.
1980
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Symbol
[E/ESCAP/]TRANS/IRGM/(2)/3
Title
Improvement of signalling and telecommunication in the railway systems of the region where electric power supply and adequate transmission lines are not available.
Authors
Date
[Bangkok] : UN, 25 Apr. 1980.
Description
[63] p. : ill., charts, tables.