000
00270nam a2200109Ia 4500
008
230130s1964 xx 000 0 und d
041
_a
eng
082
_a
534
100
_a
Singh, Harnam
_9
1478024
245
_a
Principles of sound
260
_a
Delhi
_b
Atma Ram & Sons
_c
1964
999
_c
960636
_d
960636