TY  - BOOK
AU  - Carlson,A.Bruce; Crilly,Paul.B & Rutledge,Janet.C
TI  - Communication systems : an introduction to signals and noise in electrical communication
SN  - 0-07-121028-8
U1  - 621.38 Car 
PY  - 2002///
CY  - McGraw - Hill, Boston
KW  - ENGINEERING
ER  -