TY  - BOOK
AU  - Penfold,R.A.
TI  - Popular electronic projects
SN  - 0859340538
U1  - TK/9965 
PY  - 1978///
CY  - London
PB  - Bernard Babani (publishing) Ltd
KW  - Electronic apparatus and appliances -- Amateurs' manuals.
ER  -