000 00512nam a22002297a 4500
003 PHGCL
005 20210618224511.0
008 210601r1980 ii ||||| |||| 00| 0 eng d
020 _cRs.14.00
040 _aDNCC
_beng
082 _a534
_bRA211SO
100 1 _aRay, K. D.
245 1 0 _aSound
_cK. D. Ray
260 _aKolkata
_bIndian Book Concern
_c1980
300 _a156 p.
500 _ainclude Index
650 _aPhysics
650 _aAcoustics
650 _aSound
650 _a
942 _2ddc
_cBK
999 _c7197
_d7197