Improvement of signalling and telecommunication in the railway systems of the region where electric power supply and adequate transmission lines are not available.
1980
تفصيلات التسجيلة (السجل)
رمز / رقم الاستدعاء[E/ESCAP/]TRANS/IRGM/(2)/3
العنوانImprovement of signalling and telecommunication in the railway systems of the region where electric power supply and adequate transmission lines are not available.
المؤلفونKawamura, Tadao.
تاريخ[Bangkok] : UN, 25 Apr. 1980.
الوصف
[63] p. : ill., charts, tables.