TY  - BOOK
AU  - Heap,N.W.
AU  - Martin,G.S.
TI  - Introductory digital electronics: from truth tables to microprocessors 
SN  - 0335101844
PY  - 1982///
CY  - Milton Keynes
PB  - The Open University Press
KW  - Digital electronics
N1  - Includes index
ER  -