TY  - BOOK
AU  - Carlsan, A. Bruce
AU  - Crilly, Paul B.
AU  - RUTLEDGE, Janet C.
TI  - Communication systems: an introducion to signals and noise in electrical communication
U1  - 621.38223 
PY  - 2002///
CY  - Boston
PB  - McGrawHill
KW  - Electronics & Communication Engg
ER  -