000 | 00269nam a2200085Ia 4500 | ||
---|---|---|---|
008 | 180131b1958 xxu||||| |||| 00| 0 eng d | ||
080 |
_a _bBS-1259 - 1958 |
||
100 | _aBritish Standards Institution | ||
245 | _aBs-1259 - 1958; Intrinsically Safe Electrical Apparatus And Circuits | ||
260 |
_a _bBSI _c1958 |
||
999 |
_c40870 _d40870 |