TY  - BOOK
AU  - Roddy,Dennis
TI  - Radio and line transmission,
T2  - The Commonwealth and international library. Electrical engineering division
SN  - 9781483136301
AV  - TK5101 .R57
U1  - 621.38 
PY  - 1972///
CY  - Oxford, New York
PB  - Pergamon Press
KW  - Telecommunication
ER  -