000
00321nam a2200145Ia 4500
100
_a
Everest/ F.A.
650
_a
Electrical Engineering
942
_c
BK
654
_a
sound system
245
_a
Public address sound system
260
_b
Tab books
_a
USA
_c
1978
082
_a
621.38
300
_a
272
546
_a
ENGLISH
999
_c
18004
_d
18004