TY  - BOOK
AU  - Carlson A. B.,
AU  - Crilly P. B.,
TI  - Communication Systems An Introduction to Signals and Noise in electrical Communication: Communication Systems 
SN  - 9780071321174
U1  - 621.382 
PY  - 2011///, 2012
CY  - Noida
PB  - Tata Mc Graw Hill Education  Pvt.  Ltd.
KW  - Dig. Communication
ER  -