000
00249pam a2200097a 44500
082
_a
TR
_b
IC-9230
100
_a
Nabil A. Bibawy
245
1
_a
Method for the calibration of class 2 and class 4 standards of mass
260
_a
_b
_c
997
_a
TR6441 C
999
_c
405679
_d
405679