TY  - BOOK
TI  - Interfacing switches-english   
T2  - Series 11/12-Basic microprocessor   
SN  - 2004000018   
PY  - 1989///.
CY  - Crowborough
PB  - Audio Visual Source, 
KW  - Switching circuits
N1  - IT-8040/11; VHS/PAC
ER  -