000 00340nam a2200133Ia 4500
001 16780
008 170722s9999 xx 000 0 und d
100 _aJeans James
245 _aThrough space and time based on the Royal institution lectures christmas /
260 _c1949
653 _aAstronomy
653 _aMathematics
942 _cGEN
999 _c22457
_d22457