000
00304nam a2200145Ia 4500
020
_a
(pbk)
082
_a
534
_b
ARO
_c
L-6,P-78
100
_a
Arora- C. L.
245
_a
Sound
250
_a
10th ed.
260
_a
New Delhi
_b
S. Chand and Company
_c
1977
300
_a
805p
650
_a
Physics
942
_c
BK
999
_c
4554
_d
4554