TY  - BOOK
AU  - Roddy, Demis.
AU  - Roddy, Demis.
TI  - Electronic communication
SN  - 81-203-0984-7
U1  - 621.38 ROE 22
PY  - 2002///
CY  - New Delhi
PB  - Prentice Hall
KW  -  
KW  - Communication engineering
ER  -