000 00336nam a2200157Ia 4500
008 160615s9999 xx 000 0 und d
100 _aGENERAL ELECTRIC COMPANY
245 _aX-ray studies
260 _aNew York
260 _bGEC
260 _c1919
300 _a292 p.
942 _cBooks
999 _c8717
_d8717