000 00299nam a22001097a 4500
008 230817b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
245 _aAudio-electronics
260 _aBombay:
_bH. S. Bhatty,
_c1960
310 _aMonthly
942 _cCR
999 _c58889
_d58889