TY  - BOOK
AU  - Roddy,Dennis
AU  - Coolen,John
TI  - Electronic communications
SN  - 0876923961
AV  - TK5101 .R56 1992
U1  - 621.38 19
PY  - 1992///
CY  - New Delhi : 
PB  - Prentice Hall of India, 
KW  - Telecommunication
KW  - Electronic communications
N1  - Includes index
ER  -