TY  - BOOK
AU  - Singal, T.L.
TI  - Analog and digital communications
SN  - 9780071072694
U1  - 621.3822 
PY  - 2012///
CY  - New Delhi
PB  - Tata McGraw Hill
KW  - Telecommunication systems
N1  - Includes index
ER  -