TY  - BOOK
AU  -  Leach,Donald P .
AU  - Malvino,Albert Paul  .
TI  - Digital: principles and applications / 
U1  - 004.2 
PY  - 1995///
CY  - New Delhi : 
PB  - Tata Mc Graw Hill Publishing Company , 
KW  - Digital design
ER  -