TY  - BOOK
AU  - Admiralty
TI  - Handbook of wireless telegraphy
U1  - D65,48 F5A,G8.1 
PY  - 1938///
CY  - London
PB  - His Majesty's Stationary Office
KW  - Wireless telegraphy
N1  - Includes appendix and indxes
ER  -