TY  - BOOK
AU  - Leach, Donald P and Others 
TI  - Digital principles and aplications 
SN  - 978-0-07-060175-8 
U1  - 621.381 5 MAL  
PY  - 2008///
CY  - Tata mcgraw-hill 
PB  - New Delhi 
KW  - CIRCUITRY
ER  -