000 00235nam a2200073 4500
080 _a
_b
245 _aBS-0406 - 1931; Specification for Apparatus for Workshop Testing of Permanent Magnets
700 _aBritish Standards Institution
260 _aLondon
_bBSI
_c1931
300 _a33+7plates
999 _c24560
_d24560