000 00293pam a2200109a 44500
082 _aTR
_bIC-9257
100 _aW. E. Cooper
245 1 _aInternational intercalibration and intercomparison program radon daughter measurements
260 _a
_b
_c
700 _aR. F. Holub
997 _aTR6467 C
999 _c405700
_d405700