TY  - BOOK
AU  - Bridgman,Roger
AU  - Eyewit, Stobbart Ron (Art Editor )
TI  - Electronics
T2  - Eyewitness Guides; 90
SN  - 0751361453
PY  - 1993///
CY  - London
PB  - Dorling Kindersley
KW  - The World Around Us (Inventions )
ER  -