TY  - BOOK
AU  - Sharma Aja. 
AU  - Sinha R K
TI  - Modern electronic communication : principles and practice
SN  - 81-87433-03-5 
U1  - 621.382 
PY  - 2010///
CY  - New delhi
PB  -  Dhanpat Rai Pub. 
KW  - Engineering
ER  -