000 00295nam a22001097a 4500
008 240821b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
245 _aVacuum
260 _aOxford:
_bPergamon Press Limited
310 _aMonthly
942 _cCR
_2udc
999 _c65939
_d65939