Choice and consequences in establishing signalling systems for international application.
1981
Notice détaillée
Symbole[E/ESCAP/]TRANS/RCDMT/10
TitreChoice and consequences in establishing signalling systems for international application.
AuteursHogendijk, P.J.
ITU
ITU
DateBangkok : UN, 4 Nov. 1981.
Description
[40] p., : diagrams, tables.