TY  - BOOK
AU  - Oppenheim, Alan V.,
AU  - Nawab, Syed Hamid.,
AU  - Willsky, Alan S. ,
TI  - Signals and​ systems
T2  - Prentice-Hall signal processing series
SN  - 9788177582628
U1  - 621.3822 OPP 
PY  - 1997///
CY  - New Delhi
PB  - Pearson Education
N1  - Includes index.
ER  -