TY  - BOOK
AU  - Rao, Ganesh. D 
TI  - Signals and systems 
SN  - 978-81-317-3229-8 
U1  - 621.382 2 RAO  
PY  - 2008///
CY  - Pearson education of asia 
PB  - New Delhi 
KW  - COMMUNICATION SYSTEM
ER  -