000 00275nam a2200109Ia 4500
008 211214s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aAston, F W
245 0 _aIsotopes
260 _bEdward Arnold co
_aLondon
_c1924
942 _c1
999 _c53017
_d53017