TY  - BOOK
AU  - Carlson,A.Bruce
TI  - Communication systems: an introduction to signals and noise in electrical communication 
SN  - 0071005609
U1  - 621.38043 
PY  - 1986///
CY  - New York
PB  - McGraw Hill
KW  - Digital communications
KW  - Modulation (Electronics)
KW  - Signal theory (Telecommunication)
ER  -