TY  - BOOK
AU  - Opperheim, Alan V.
AU  - Nawab, S. Hamid 
TI  - Signals and systems
SN  - 9789332550230
U1  - 621.3822 
PY  - 2018///
CY  - Noida
PB  - Pearson
KW  - ECE
ER  -