TY  - BOOK
AU  - Bruce, Carlson A. 
AU  - Paul B. Crilly 
TI  - Communication Systems: An introduction to Signals and Noise in Electrical Communication / 
SN  - 978-007-0126332-0
U1  - Circ. 621.38223 C284c 2010  Fifth Edition 
PY  - 2010///
CY  - New York 
PB  - McGraw-Hill
ER  -