TY  - BOOK
AU  - Ratcliffe,J.A.
TI  - The Physical principles of wirless
U1  - 621.3841 
PY  - 1958///
CY  - London
PB  - Methuen
KW  - Radio
KW  - Antennas
KW  - Transmitters and transmission
KW  - Receivers and reception
KW  - Telephone, wireless
KW  - Radio waves
N1  - Includes index
ER  -