000 00332nam a2200133Ia 4500
008 211214s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aWorsnop, B L
245 0 _aX-rays
260 _bMETHUEN AND CO. ,LTD.
_aLONDON
_c1950
300 _aVII,125P p.
653 _aPHYSICS
942 _c1
999 _c23882
_d23882