TY  - BOOK
AU  - RATCLIFFE (J A)
AU  - APPLETON (E V)
TI  - The physical principles of wireless
U1  - 535/108 
PY  - 1934///
CY  - London
PB  - Methuen  Co Ltd.
KW  - wireless
KW  - principles
KW  - physical
ER  -