TY  - BOOK
AU  - Mitra, Sanjit, K 
TI  - Digital signal processing 
SN  - 0-07-044705-5 
U1  - 621.382 2 MIT  
PY  - 2008///
CY  - Tata mcgraw hill 
PB  - New Delhi 
KW  - COMMUNICATION SYSTEM
ER  -