000 00399pam a2200169a 44500
008 140414b1977 xxu||||| |||| 00| 0 eng d
082 _aC3
_bSUB L7 ; 3
100 _aSUBRAHMANYAM, N
245 _aSound
_c
250 _a2 . Ed.
260 _aNOIDA
_bVIKAS PUBLISHING HOUSE PVT LTD
_c1977
650 _a SOUND
650 _aPHYSICS
690 _aPHYSICS
700 _aLAL, BRIJ
906 _a23140
999 _c22307
_d22307