TY  - BOOK
AU  - NAGRATH I J
AU  - RANJAN RAKESH
AU  - SHARAN S N
TI  - SIGNALS AND SYSTEMS
SN  - 0-07-463771-1
U1  - 621.382 2 NAG 
CY  - NEW DELHI
KW  - COMMUNICATION
KW  - S&S
ER  -