TY  - BOOK
AU  - Leach/Donald P/ Malvino/A.P 
TI  - Digital principles and applications
U1  - 621.39/LEA 
PY  - 1995///
CY  - New  Delhi
PB  - Tata Mc Graw hill Ltd.
KW  - Digital Principles
KW  - digital principles
ER  -