000
00239nam a2200109Ia 4500
020
_a
9780070591172
100
_a
AMITABHA BHATTACHARAYE
245
_a
DIGITAL COMMUNICATIONS
250
_a
3
260
_c
2008
_b
TATA MCGRAWHILL
490
_a
P3527
999
_c
3561
_d
3561