TY  - BOOK
AU  - Nelkon, M.
AU  - Humphreys, H.I
TI  - Electronic and radio an Introduction
SN  - 0435683357
U1  - 621.3841 
PY  - 1975///
CY  - London
PB  - Heinemann education book
KW  - Applied Physics
KW  - Electricity and electronics
ER  -