000 00295nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _aNorton Abrasives
245 2 _aA Handbook on Abrasives and Grinding wheels
260 _bNorton company
260 _c1941
365 _b0.00
942 _cBK
999 _c150838
_d150838