TY  - BOOK
AU  - Richards, R.K.
TI  - Digital design
SN  - 0-471-71945-5
U1  - D6,8(B):4 L1R 
PY  - 1971///
CY  - New York
PB  - John Wiley
KW  - Digital Design
N1  - Includes Index
ER  -