TY  - BOOK
AU  - Gabel, Robert A.
ED  - Roberts, Richard A.
TI  - Signals and linear systems
SN  - 0471825131
U1  - 621.380430151535 
PY  - 1973///
CY  - Canada
PB  - John Wiley 
KW  - Signals and signaling
KW  - Signals and signaling ,linear
ER  -