TY  - BOOK
AU  - Carlson, A. Bruce.
AU  - Crilly, Paul B.
TI  - Communication systems: an introduction to signals and noise in electrical communication 
SN  - 9780071321174
AV  - 21632-21636 
U1  - 621.38223 22
PY  - 2017///
CY  - Chennai
PB  - McGraw-Hill
N1  - Includes index
ER  -