TY  - BOOK
AU  - Ravindranathan, K. C 
TI  - Anolg communications systems principles and practice 
SN  - 81-7871-620-X 
U1  - 621.382 RAV  
PY  - 2008///
CY  - Univercity press 
PB  - Hyderabad 
KW  - COMMUNICATION SYSTEM
ER  -