TY  - BOOK
AU  - Singh, R. P.
AU  - Singh, R. P.Sapre, S. D.
TI  - Communication systems :  analog and digital    
SN  - 74603396
AV  - 621.382 SIN 1995 
U1  - 621.382 SIN 1995 
PY  - 1995///
CY  - New delh
PB  - McGraw-Hill
KW  - Communication Engineering
ER  -