TY  - GEN
AU  - The international telecommunication union
TI  - Instructions for the international telephone service
U1  - 621.385,INS 
PY  - 1965///
CY  - The international telecommunication union
PB  - Geneva
KW  - The international telecommunication union
KW  - Instructions for the international telephone service
N1  - Application of the Instructions (Page-5), General (Page-7), Advance Preparation Operating (Page-54), Semi-Preparation Operating (Page-73), Demand Working (Page-75),Automatic Operating (Page-100)
ER  -