TY  - GEN
AU  - Roddy, Dennis.
AU  - John Coolen
TI  - Electronic communications
SN  -  013312083X
U1  - 621.382 
PY  - 1995///
CY  - New Delhi
PB  - Prentice Hall of India Ltd.
KW  - Telecommunication
N1  - Includes Index
ER  -