TY  - GEN
AU  - Carlson, A. Bruce
AU  - Crilly, Paul B. 
TI  - Communication systems: introduction to signals and noise in electrical communication
SN  - 0071210288
U1  - 621.391.822 
PY  - 2002///
CY  - Boston
PB  - Mc Graw Hill
KW  - Signals
KW  - Analog communication systems
KW  - 621.391.822
ER  -