000
00270nam a2200109Ia 4500
008
220201s9999 xx 000 0 eng d
100
_a
KHANNA(D.R.) & BEDI(R.S.)
245
0
_a
TEXTBOOK OF SOUND
260
_b
ATMARAM & SONS DELHI
650
_a
ELECTRONIC
942
_2
ddc
999
_c
100402
_d
100402