TY  - BOOK
AU  - Keen,A.W.
TI  - Electronic: an introduction too the non technical...
U1  - 621.38 
PY  - 0000///lock,
PY  - 1960///
CY  - London
PB  - Ward
KW  - Electronics
KW  - Electronic beams
KW  - Electronic circuits
KW  - Electronic engineering
N1  - Includes index
ER  -