000
00317nam a22001457a 4500
008
240523b |||||||| |||| 00| 0 eng d
020
_a
0194424286
050
_a
QC358
_b
.W45
100
_a
WELFORD, W. T
245
_a
Optics
250
_a
2nd
260
_a
Britain
_b
E L B S
_c
1981
300
_a
vii, 150p.
942
_c
BK
999
_c
820
_d
820