TY  - BOOK
AU  - Oppenheim, Alan V.
AU  - Willsky, Alan S. 
AU  - Nawab, S. Hamid 
TI  - Signals and systems
SN  - 9789332550230
U1  - 621.38223  
PY  - 2013/// (2019 13th impression)
CY  - Noida, UP, India
PB  - Pearson India Services
KW  - Singnal
ER  -