000 00517 a2200241 4500
001 276025
020 _a
041 _aeng
080 _aDBSI 6083 : part - 6 : 1984
245 _aHearing aids : part - 6 : specification for characteristics of electrical input circuits for hearing aids
250 _a
260 _aLondon
260 _bBSI
260 _c1985
300 _a3 p.
300 _c
856 _u
490 _aBSI 6083 : part - 6 : 1984
700 _a
650 _a
650 _a
942 _cPP
942 _2UDC
999 _c233812
_d233812