TY  - GEN
AU  - Oppenheim, Alan V.
AU  - Willsky, Alan S.    
AU  -  Nawab, Hamid S.   
TI  - Signals & systems
SN  - 8178086883
U1  - 621.3822 
PY  - 1997///
CY  - New Delhi
PB  - Pearson Education
KW  - Engineering & allied operations
KW  - Applied physics
ER  -