000
00303nam a2200121Ia 4500
008
170101s1955 xx 000 0 und d
082
_a
546.683 A25Q
100
_a
AHRENS, L.H
245
0
_a
Quantitative spectrochemical analysis of silicates
260
_b
London
_c
1955
300
_a
122p
942
_2
ddc
_c
B
999
_c
9763
_d
9763