000 00259 a2200121 4500
080 _a546.432
_bS 679 I
245 1 _aInterpretation of radium
_cby F. Soddy
250 _a4th edn.
260 _c1920
650 _aRadium
100 1 _aSoddy, F.
_d
901 _a538
999 _c26888
_d26888