TY  - BOOK
AU  - RATCLIFFE,J.A.
TI  - THE PHYSICAL PRINCIPLES OF WIRELESS
U1  - PE160 
PY  - 1942///
CY  - LONDON
PB  - METHUEN AND CO.,LTD 36ESSEX STREET W.C.
N1  - PE mean Physics, Electricity and Magnetism Page 450-456 in A to Z Register (Acc. No. Pe1-Pe205)
ER  -