000 00468nam a22001337a 4500
008 230726b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
245 _aReport of the 54th national conference on weights and measures 1969
_c/ U. S. Department of Commerce
260 _aU.S.A.:
_bU. S. Department of Commerce,
_c1969
300 _aix, 262p.
650 _aScience
700 _aKoeser, R L (Ed.)
942 _2udc
_cREP
999 _c55317
_d55317