000
00227 a2200109 4500
080
_a
546.65
_b
L 668 R
245
1
_a
Rare earths
_c
by S.I. Levy
260
_c
1915
650
_a
Rare Earths
100
1
_a
Levy, S.I.
_d
901
_a
703
999
_c
26900
_d
26900