TY  - BOOK
AU  - Roddy,Dennis
AU  - Coolen,John
TI  - Electronic communications
SN  - 0876923961
AV  - TK5105  .R62 1984
PY  - 1984///
CY  - New Delhi
PB  - Prentice-Halli
KW  - Telecommunication
ER  -