000 00564pam a2200193a 44500
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008 200731b xxu||||| |||| 00| 0 eng d
040 _cIIT Kanpur
041 _aeng
082 _aNASA
_bTN D-6520 -
100 _aSchehl,Thomas A.
245 1 _aTrace organic impurities in gaseous helium [ NASA TN D-6520]
_cThomas A.Schel and John F. Kennedy
260 _bNASA
_c1973
_aWashington, D.C.
300 _a18p
505 _aNASA technical report D-6520
650 _aOrganic imputrites
700 _aKennedy, John F.
942 _cREF
999 _c394214
_d394214