TY  - BOOK
AU  - RODDY DENNIS;COOLEN JOHN
TI  - ELECTRONIC COMMUNICATION
SN  - 9788177585582
U1  - 621.382 
PY  - 1981///
CY  - NEW DELHI
PB  - P.H.I PUBLISHER-1
KW  - Communication Engg-Digital Com
ER  -