TY  - BOOK
AU  - Oppenheim Alan V.
AU  -  Nawab S. Hamid Willsky Alan S. 
TI  - Signals and Systems
SN  - 8120312465
U1  - 621.382 
PY  - 2000///
CY  - New Delhi
PB  - Prentice Hall India Pvt. Ltd.
N1  - "Doneted by Mithilesh Tiwari, Nagpur"
ER  -