TY  - BOOK
AU  - Rao, P. Ramakrishna 
TI  - Digital communication 
SN  - 9780070707764 
U1  - 621.382 FRE 2011 
PY  - 2011///
CY  - New Delhi
PB  - Tata McGraw-Hill
KW  - Digital communications
ER  -