TY  - BOOK
AU  - 
TI  - The beginning of radio / Rosemary Border
SN  - 0304305936
U1  - Hem 428.64 
PY  - 1981///
CY  - London: 
PB  - British Library, 
KW  - IDIOMA INGLÉS
N1  - 1.  Crippen´s life at sea.-- 2. We have plenty of wire.-- 3. On the roof on ther post office.-- 4. The marconi wireless telegraphy company
ER  -