000 | 00405nab a2200145Ia 4500 | ||
---|---|---|---|
008 | 230101s1989 xx 000 0 eng d | ||
100 | _aLowe, David C. | ||
245 | 0 | _aProblems associated with the use of coal as a source of 14C-free backgroun material | |
250 | _aVol. 31 Issue 2 | ||
260 | _c1989 | ||
300 | _a117-120p | ||
310 | _atwice a year | ||
773 |
_tRadiocarbon _051578 |
||
942 |
_2ddc _cAR |
||
999 |
_c65057 _d65057 |