000
00301nam a2200133Ia 4500
100
_a
DAS P N
650
_a
Manual Telephony
365
_c
RS
365
_d
1
942
_c
ENGBK
245
_a
An Introduction to Manual Telephony
260
_b
Modern Book Agency
_c
1990
_a
Calcutta
300
_a
III+150 PP
999
_c
31394
_d
31394