TY  - BOOK
AU  - Marchant, E W.
TI  - Radio telegraphy and telephony
U1  - 621.384 
PY  - 1923///
CY  - London
PB  - Hodder and Stoughton
KW  - Radio telephony
KW  - Wireless communication
KW  - Radio modulation techniques
N1  - Includes index
ER  -