TY  - BOOK
AU  - Farr,R.E.
ED  - Institution of Electrical Engineers.
TI  - Telecommunications traffic, tariffs and costs: an introduction for managers 
T2  - Institution of Electrical Engineers telecommunications series,
SN  - 0863411452 (cased)
PY  - 1988///
CY  - London
PB  - Peter Peregrinus Ltd on behalf of the Institution of Electrical Engineers
ER  -