TY  - BOOK
AU  - Lewin,Douglas
TI  - Logical design of switching circuits
SN  - 0444197575
U1  - 621.381/537 
PY  - 1974///
CY  - Hon Kong
PB  - ELBS and Nelson
KW  - Switching theory
KW  - Electronic digital computers--Circuits
KW  - Electronic circuit design
ER  -