TY  - BOOK
AU  - Singh,R.P.
TI  - Communication systems analog & digital
SN  - 9780070634541
U1  - 621.382 
PY  - 2007///
CY  - New Delhi
PB  - Tata McGraw-Hill
KW  - Telecommunications
KW  - Digital communication
KW  - Data transmission system
ER  -