000
00295nam a22001097a 4500
008
240821b |||||||| |||| 00| 0 eng d
040
_a
National Science Library
_c
National Science Library
245
_a
Vacuum
260
_a
Oxford:
_b
Pergamon Press Limited
310
_a
Monthly
942
_c
CR
_2
udc
999
_c
65939
_d
65939