TY  - BOOK
AU  - Heffer,D .E
AU  - King,G .A
AU  - Keith,D .C
TI  - Basic Principles and Practice of Microcessors / 
U1  - 001.64644/HEF 
PY  - 1982///
CY  - London
PB  - Edward Arnold
KW  - Computers
ER  -