TY  - BOOK
AU  - Singh R. P.
AU  - Sapre S. D.,
TI  - Communication Systems
SN  - 0074603396
U1  - 621.382 
PY  - 1995///
CY  - Noida
PB  - Tata Mc Graw Hill Education  Pvt.  Ltd.
KW  - Dig. Communication
ER  -