000
00297nam a2200133Ia 4500
942
_c
ENGBV
520
_a
Issue No. 9,11-12
654
_a
Voice
654
_a
India
654
_a
Telecommunication
245
_a
Voice and India
260
_a
National
_b
Gupta, Pradeep. New Delhi
_c
2002
440
_v
8
999
_c
40114
_d
40114