000
00244pam a2200109a 44500
082
_a
TR
_b
NBS-331
100
_a
B. W. Mann
245
1
_a
Radioactivity calibration standards
260
_a
_b
_c
700
_a
B. S. Garfinkel
997
_a
TR4204 C
999
_c
405106
_d
405106