TY  - BOOK
ED  - GAS 3 (Group)
ED  - International Telecommunication Union
TI  - General network planning
U1  - 384.6 
PY  - 1983///
CY  - Geneva
PB  - International Telecommunication Union, International Telegraph and Telephone Consultative Committee
KW  - International Telegraph and Telephone Consultative Union
KW  - Telephone systems
KW  - Planning
ER  -