TY  - BOOK
AU  - Tocci,Ronald J.
AU  - Widmer,Neal S.
TI  - Digital systems: principles and applications 
SN  - 8178085593
AV  - TK7868 .D5T62 2001
U1  - 621.381 
PY  - 2001///
CY  - New Delhi
PB  - Pearson Education
KW  - Digital electronics
ER  -