000 00643nam a22001817a 4500
008 230501b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
080 _a53.08
_bL2.5
100 _aBlair, B E
_97961
245 _aPrecision measurement and calibration:
_bSelected NBS papers on frequency and time
260 _aWashington, D.C.:
_bNational Bureau of Standards,
_c1972
490 _aNBS special publication 300
_vVol. 5
650 _aAtomic frequency standards
653 _aPhysical instruments
653 _aFrequencies of oscillating systems
700 _aMorgan, A H
942 _2udc
_cPR
999 _c25553
_d25553