TY  - BOOK
AU  - Opperheim, Alan V.
AU  - Willsky Alan S.
AU  - Nawab, S. Hamid
TI  - Signals and systems
SN  - 978-93-325-5023-0
U1  - 621.3822 
PY  - 2018///
CY  - New Delhi
PB  - Pearson Prentice Hall
KW  - Signals and systems
N1  - Includes appendix, index and bibliography
ER  -