TY  - BOOK
AU  - Carlson, A
TI  - Communication systems an introduction to signal and noise in electrical communication
SN  - 0-07-121028-8
U1  - 621.38223 
PY  - 2002///
CY  - New Delhi
PB  - Tata Magraw-Hill
KW  - Electrical Electronics Communication
ER  -